Unhappy client

I took my phone (Huawei Nova Y9A) to vodacom store at Jobulani Mall end of March 2025 for the broken screen. They said they will give me a quotation after few days which they did, they quoted R1 374.00. I gave them a go ahead and they asked me to sign a document stating that if I fail to pay after 3 months once the phone has been fixing I will lose it. On the 28 June I paid and took my phone, they screen was perfect but when I get home I realize the camera is not working then on the 29 June I took it back to the same store and explained to them my camera is no longer working, they said I should leave it, the person that was fixing my phone is already gone. After 2 weeks I went to check my phone and they said they still busy fixing it. The guy said I should buy the board, I asked him how can I buy the board if is not my fault, he then said is not anyone fault. Is now over a month and I haven't received any communication from them. Who can help me in this situation?