I am currently running iOS 26.4 Beta and have encountered a critical issue with the in-app purchase system. Due to a system malfunction in this beta version, I was charged multiple times for the same purchase. I have already submitted a formal refund request through the official channels; however, the request was rejected/not processed. Has anyone else experienced similar billing issues on this specific beta build? Any advice on how to escalate this, given that the standard refund process has failed?