My problem is well described in this post https://learn.microsoft.com/en-us/answers/questions/1222064/how-can-i-request-a-refund-from-azure-if-expedited?source=docs. The only thing that I was wrong with the amount, it is more. In the last 3 days I had 3 chats and over 10 calls, I wrote a letter to tech support and asked 2 questions on this forum. As a result, I received the following answers: we do not deal with these issues, we will connect you with someone who will definitely help you, call this number, go to the site and you will find everything there. And none of that helped in the end. Azure tech support always offers a collection of articles, user interface and it doesn't help me. I tried all this many times. Tell me, do I understand correctly that they won’t help me and I have to pay a huge bill for wanting to learn how to work with the Azure service (training, not commerce)?