EWA Account Shows Another User’s Profile Name

I am a lifetime Premium subscriber to the EWA foreign language learning app. Today, when I opened the app while logged into my own account, I noticed that the profile name was showing the username of a completely different person. The study records displayed in the app also appear to belong to this person, while my entire previous study history has disappeared. However, the email address associated with the account still belongs to me and appears unchanged.

I was using the app without any problems yesterday, and this issue appeared today. I contacted EWA Support through the app and also reported the issue in the reviews on Google Play, but I have not received any response yet. I have lost the study history I worked hard to build, and I do not want to continue using the app under a profile that appears to belong to someone else.

I expect EWA to restore my account to its previous state as soon as possible, change my profile name back to Ahmet T****, and fully restore all of my previous study records to my account. I also request a clear explanation of how this mix-up occurred and whether my personal data has been compromised.