For example, I have generated a 4000$ bill within 24 hours by an AWS Lambda function reading a row from a DynamoDB table and then called itself again using an EventBridge event ;( And that with a concurrency of 300 and so I quickly reached the 4000$ within a few hours.
I immediately opened a support ticket, but it's been 4 weeks now and it seems nobody can or wants to help me.
What are your experiences?
It does happen but you need to be pro-active and not waiting on a reply to a ticket.
I can imagine that ticket slowly sinking to the bottom of the pile as nobody wants to take that on or make that decision, especially in writing!