Yapi Kredi Bank Credit Extension Error: Quick Fix Needed

Hello, I inadvertently extended the terms of the loans I obtained from Yapi Kredi Bank, leaving me unable to pay the interest payments. When I called the call center, they assured me that they would cancel it the next day. Even though I do not want the payment to be extended, the representative informed me that due to system constraints, it was impossible to return the terms to their previous conditions. I am requesting that the situation be resolved and that the terms be reinstated. I am a loyal customer who does not wish to switch banks. If necessary, I will transfer my debts to a different bank. I strongly urge you to take the necessary steps as soon as possible. Thank you very much.