Oppo Watch

We bought an Oppo watch with a service provider in Paarl Mall in 2022. About 3 month later the watch would not charge. We took it back to the service provider, they then said it was because of new updates. 2 Months later the same old story. They then send it off to be repaired. No replacement watch were given in that ones place. In the last 2 years that I had this watch, it went back and forth about 4 times. What am I to do in a case like this? I think that I should get my money back?? Their service are really poor to say the least. Magda