diff --git a/sdk/servicebus/azure-messaging-servicebus/src/main/java/com/azure/messaging/servicebus/ServiceBusReceiverAsyncClient.java b/sdk/servicebus/azure-messaging-servicebus/src/main/java/com/azure/messaging/servicebus/ServiceBusReceiverAsyncClient.java
index 5074770a78b6d..560e69e12aa4e 100644
--- a/sdk/servicebus/azure-messaging-servicebus/src/main/java/com/azure/messaging/servicebus/ServiceBusReceiverAsyncClient.java
+++ b/sdk/servicebus/azure-messaging-servicebus/src/main/java/com/azure/messaging/servicebus/ServiceBusReceiverAsyncClient.java
@@ -3,7 +3,6 @@
 
 package com.azure.messaging.servicebus;
 
-import com.azure.core.amqp.AmqpRetryOptions;
 import com.azure.core.amqp.AmqpRetryPolicy;
 import com.azure.core.amqp.AmqpSession;
 import com.azure.core.amqp.AmqpTransaction;
@@ -1512,7 +1511,10 @@ public Mono<Integer> deleteMessages(int messageCount, DeleteMessagesOptions opti
      * This method may invoke multiple service requests to delete all messages. Because multiple service requests may be
      * made, the possibility of partial success exists, in such scenario, the method will stop attempting to delete
      * additional messages and throw the exception that was encountered. Also, due to the multiple service requests,
-     * purge operation may exceed the configured {@link AmqpRetryOptions#getTryTimeout()}.
+     * purge operation may take longer if there are a lot of messages to delete.
+     * </p>
+     * <p>
+     * The api will purge all the messages enqueued before {@link OffsetDateTime#now()} UTC.
      * </p>
      *
      * @return a {@link Mono} indicating the number of messages deleted.
@@ -1528,10 +1530,12 @@ public Mono<Integer> purgeMessages() {
      * This method may invoke multiple service requests to delete all messages. Because multiple service requests may be
      * made, the possibility of partial success exists, in such scenario, the method will stop attempting to delete
      * additional messages and throw the exception that was encountered. Also, due to the multiple service requests,
-     * purge operation may exceed the configured {@link AmqpRetryOptions#getTryTimeout()}.
+     * purge operation may take longer if there are a lot of messages to delete.
      * </p>
      *
-     * @param options options used to purge the messages.
+     * @param options options used to purge the messages, application may specify a UTC timestamp in the options
+     *  indicating only purge messages enqueued before that time, if such a cut of time is not specified then
+     *  {@link OffsetDateTime#now()} UTC will be used.
      *
      * @return a {@link Mono} indicating the number of messages deleted.
      * @throws NullPointerException if {@code options} is null.
diff --git a/sdk/servicebus/azure-messaging-servicebus/src/main/java/com/azure/messaging/servicebus/ServiceBusReceiverClient.java b/sdk/servicebus/azure-messaging-servicebus/src/main/java/com/azure/messaging/servicebus/ServiceBusReceiverClient.java
index b73312dd0944f..54aecb135d221 100644
--- a/sdk/servicebus/azure-messaging-servicebus/src/main/java/com/azure/messaging/servicebus/ServiceBusReceiverClient.java
+++ b/sdk/servicebus/azure-messaging-servicebus/src/main/java/com/azure/messaging/servicebus/ServiceBusReceiverClient.java
@@ -3,7 +3,6 @@
 
 package com.azure.messaging.servicebus;
 
-import com.azure.core.amqp.AmqpRetryOptions;
 import com.azure.core.annotation.ServiceClient;
 import com.azure.core.util.IterableStream;
 import com.azure.core.util.logging.ClientLogger;
@@ -879,7 +878,7 @@ public int deleteMessages(int messageCount) {
      * @throws NullPointerException if {@code options} is null.
      */
     public int deleteMessages(int messageCount, DeleteMessagesOptions options) {
-        return asyncClient.deleteMessages(messageCount, options).block(operationTimeout);
+        return asyncClient.deleteMessages(messageCount, options).block();
     }
 
     /**
@@ -889,7 +888,10 @@ public int deleteMessages(int messageCount, DeleteMessagesOptions options) {
      * This method may invoke multiple service requests to delete all messages. Because multiple service requests may be
      * made, the possibility of partial success exists, in such scenario, the method will stop attempting to delete
      * additional messages and throw the exception that was encountered. Also, due to the multiple service requests,
-     * purge operation may exceed the configured {@link AmqpRetryOptions#getTryTimeout()}.
+     * purge operation may take longer if there are a lot of messages to delete.
+     * </p>
+     * <p>
+     * The api will purge all the messages enqueued before {@link OffsetDateTime#now()} UTC.
      * </p>
      *
      * @return the number of messages deleted.
@@ -905,10 +907,12 @@ public int purgeMessages() {
      * This method may invoke multiple service requests to delete all messages. Because multiple service requests may be
      * made, the possibility of partial success exists, in such scenario, the method will stop attempting to delete
      * additional messages and throw the exception that was encountered. Also, due to the multiple service requests,
-     * purge operation may exceed the configured {@link AmqpRetryOptions#getTryTimeout()}.
+     * purge operation may take longer if there are a lot of messages to delete.
      * </p>
      *
-     * @param options options used to purge the messages.
+     * @param options options used to purge the messages, application may specify a UTC timestamp in the options
+     *  indicating only purge messages enqueued before that time, if such a cut of time is not specified then
+     *  {@link OffsetDateTime#now()} UTC will be used.
      *
      * @return the number of messages deleted.
      * @throws NullPointerException if {@code options} is null.
diff --git a/sdk/servicebus/azure-messaging-servicebus/src/test/java/com/azure/messaging/servicebus/ServiceBusReceiverAsyncClientIntegrationTest.java b/sdk/servicebus/azure-messaging-servicebus/src/test/java/com/azure/messaging/servicebus/ServiceBusReceiverAsyncClientIntegrationTest.java
index f78c8f4c1c646..72b6c656d5ebb 100644
--- a/sdk/servicebus/azure-messaging-servicebus/src/test/java/com/azure/messaging/servicebus/ServiceBusReceiverAsyncClientIntegrationTest.java
+++ b/sdk/servicebus/azure-messaging-servicebus/src/test/java/com/azure/messaging/servicebus/ServiceBusReceiverAsyncClientIntegrationTest.java
@@ -44,7 +44,6 @@
 import java.util.Comparator;
 import java.util.HashMap;
 import java.util.HashSet;
-import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
@@ -1476,7 +1475,7 @@ void purgeMessages() {
             messages.add(getMessage(UUID.randomUUID().toString(), false));
         }
 
-        StepVerifier.create(sendMessages(messages))
+        StepVerifier.create(sender.sendMessages(messages))
             .verifyComplete();
 
         final PurgeMessagesOptions options = new PurgeMessagesOptions()
@@ -1551,41 +1550,6 @@ private Mono<Void> sendMessage(ServiceBusMessage message) {
         });
     }
 
-    private Mono<Void> sendMessages(List<ServiceBusMessage> messages) {
-        final Iterator<ServiceBusMessage> messagesItr = messages.iterator();
-        if (messagesItr.hasNext()) {
-            return sendNextBatch(messagesItr.next(), messagesItr);
-        } else {
-            return Mono.empty();
-        }
-    }
-
-    private Mono<Void> sendNextBatch(ServiceBusMessage first, Iterator<ServiceBusMessage> messagesItr) {
-        return sender.createMessageBatch().flatMap(batch -> {
-            ServiceBusMessage next = first;
-            do {
-                if (!batch.tryAddMessage(next)) {
-                    if (next == first) {
-                        return Mono.error(
-                            new IllegalArgumentException("The event " + first + " is too big to send even in a Batch."));
-                    }
-                    return sender.sendMessages(batch).then(Mono.just(next));
-                }
-                if (messagesItr.hasNext()) {
-                    next = messagesItr.next();
-                } else {
-                    return sender.sendMessages(batch).then(Mono.just(END));
-                }
-            } while (true);
-        }).flatMap(missed -> {
-            if (missed == END) {
-                return Mono.empty();
-            } else {
-                return sendNextBatch(missed, messagesItr);
-            }
-        });
-    }
-
     /**
      * Class represents various options while creating receiver/sender client.
      */