Loan item sold even though payments were made

I am unhappy that cash Crusaders north Cape Mall sold my item a Proline laptop which I'm still paying off when I put it for colleteral. I took out a loan with your branch store Kimberley North Cape Mall in May 15, 2025 and I have been paying the contract extension every month on the 15th, June, July, and August all on the 15th. Last month I received the sms link for extension on 12th September 2025 and when I tried to click and pay, I was unable, it gave an error. I then I informed the store via the whatsapp now which I was then given the number to call as they indicated it's the Kimberley New Park Branch. I then called the North Cape Mall where I took the loan and spoke to Godwon who issued me the loan in May and I was given the store FNB account number to make payment and I made an immediate payment on the 15th, which was my fourth extension and today when I wanted to pay off the loan I'm told my loan expired and item is sold and Godwin indicated via call that he will refund me my R115 for interest of a laptop I'm still paying off and still left with under two years. It's ***** and a ****, he is indicating that they don't know who they sold the item to, if it's in Cape town or Durban. It's unacceptable, I want my laptop back, it's still being paid for, I don't want your interest as I have paid it every month.