GamerMarkt Repossessed My Valorant Accounts Despite Warranty and No Refund

A total of four of my Valorant accounts were repossessed after I purchased them through Gamermarkt. Most recently, for order #1000686, the account was repossessed just nine days after I purchased it. However, there was a 14-day warranty. I made the purchase from Istanbul, topping up my balance with a credit card, and paid ₺13,800 for this transaction. I paid approximately ₺30,000 in total for all accounts. After the accounts were repossessed, I contacted Gamermarkt customer service. They stated that the matter had been referred to a legal firm; however, they also told me that similar lawsuits had been filed in three similar cases I had previously experienced, and a month later, I have received no response. To date, I have received no redress. I demand the return of my accounts, or if not possible, a refund of the total amount I paid, and that they prevent me from making any further purchases. I expect this issue to be resolved swiftly.