VakıfBank Does Not Let Me Leave the Account and Stock Campaign

Although I have tried to opt out of the Kovan account and the stock market introduction campaign through VakıfBank’s online banking, the system does not allow me to do so. I have been facing the same issue for about two weeks, and it is causing unnecessary confusion in my accounts. Despite contacting customer service during this time, no solution has been provided. I request that the cancellation of my participation in the campaign be completed and that such complications be prevented in the future.