Yapı Kredi Bank Manipulated My Corporate Credit Card Without Consent

I am extremely frustrated with Yapı Kredi Bank for repeatedly making unauthorized adjustments to my corporate credit card account. They have unilaterally raised the minimum payment from 10% to 50% without consulting me. Furthermore, they have arbitrarily reduced my credit limit from 71,300 TL to 60,000 TL without any prior notification. Such account and card settings alterations made without my knowledge are highly displeasing. I strongly object to these unwarranted changes and demand immediate resolution. If Yapı Kredi Bank fails to rectify this situation promptly, I will take the necessary steps to settle my credit card debt and sever all my commercial ties with the bank. It is unacceptable for a financial institution to modify crucial account parameters without obtaining the customer's consent. I expect fair treatment, transparency, and a swift resolution from the bank to restore my trust and confidence in their services.