Update service-limits.md

Additional information for support request creation

Author: bashan-git

articles/communication-services/concepts/service-limits.md

@@ -23,7 +23,14 @@ When you hit service limitations, you will receive an HTTP status code 429 (Too
 - Reduce the frequency of calls.
 - Avoid immediate retries because all requests accrue against your usage limits.
 
-You can find more general guidance on how to set up your service architecture to handle throttling and limitations in the [Azure Architecture](/azure/architecture) documentation for [throttling patterns](/azure/architecture/patterns/throttling). Throttling limits can be increased through [a request to Azure Support](../../azure-portal/supportability/how-to-create-azure-support-request.md).
+You can find more general guidance on how to set up your service architecture to handle throttling and limitations in the [Azure Architecture](/azure/architecture) documentation for [throttling patterns](/azure/architecture/patterns/throttling). Throttling limits can be increased through a request to Azure Support.
+
+-  Go to Azure portal
+-  Select Help+Support
+-  Click on Create new support request
+-  In the Problem description, please choose **Issue type** as **Technical** and add in the details.
+  
+You can follow the documentation for [creating request to Azure Support](../../azure-portal/supportability/how-to-create-azure-support-request.md).
 
 ## Acquiring phone numbers
 Before acquiring a phone number, make sure your subscription meets the [geographic and subscription](./telephony/plan-solution.md) requirements. Otherwise, you can't purchase a phone number. The below limitations apply to purchasing numbers through the [Phone Numbers SDK](./reference.md) and the [Azure portal](https://portal.azure.com/).