feat: update contact us page with open communication guidelines and c…

…omplaint submission process

content/intro/contact-us.mdx

@@ -1,5 +1,15 @@
 ---
 title: ✨ Contact us
-description: We'd be delighted to hear from you.
+description: Reach out and help us build a great public transit service.
 ---
 
+## Open communication
+
+Our prefered style of communication is in the open. If you'd like to say hi! or alert us about a new community project, opening a Github issue in any repo is the way to go.
+
+However, if you prefer a more direct approach, you can find contact details on each team member’s public GitHub profile. Reach out from your prefered platform! 🙂
+
+
+## Complaints
+
+Submitting your feedback through the [official complaint channels](https://www.carrismetropolitana.pt/contacts) ensures that your report is directed to the appropriate team for review and resolution. This is the most reliable way to have your concerns addressed effectively.