Lost my chain - Terrible customer service

Got a chain from my mother for Xmas, tried it on and it broke (terrible quality) took it in for repairs in December at the Hillcrest branch and was told they cant accept it until they open in January, i told them im going back to work and can they sign it in, I was told that they will lose it????? Great service, anyway, returned back on the 14 Jan 2023, handed it in for repairs, i was advised it would be two weeks, Its now the 16 February 2023 i have been calling them to try find out what is happening and they cant give me an answer, they cant find the chain, they keep saying they will chat to management, when i call back - they say they chat on whatsapp????? This is ridiculous customer service, I want my chain back and i will take it else where to get it fixed, But they cant even tell me who has it and where it has gone.