Vivo v30 E

I bought a Vivo v30 E on the 5th of June 2024. On the 24th of June 2024 it had audio failure. I went back to the store where I bought the phone (Moruleng Mall). They checked the phone and saw that it had a problem. I was asked to bring it in on the 25th so that it can be sent to MTN warehouse to have it checked. I was told I'd have to wait 7 days for this inspection to take place. The 7days lapsed and I contacted them and was not satisfied with the feedback. Contacted their complaints department and again I have been given a run around. I just paid for something that I have not fully used/enjoyed. I still don't have a phone because MTN claims it's fighting with the manufacturer on my behalf and have no qualms about debiting my account for something I have not fully enjoyed.