Ackermans Wont Return My Tablet After Repair

I bought a Mobicel tablet at Ackermans Campus Square sometime around August last year 2021. The phone stopped working around October / November of the same year and l took it back to the shop at Campus Square. It did not show any signs of cracks but l was told that it had a cracked LCD and that l was suppposed to pay R300. I was informed that l will be given an account to which l will pay the money. Its been six months and still the supplier has not been able to provide me with the account number. Ackermans stuff say that the phone is not answered when they call the supplier.