I did both a Samsung...

I did both a Samsung A05 I had it for 10 days then it didn't want to charge so it took the fone back to the store in grabouw Ackermans where the manager inform me that they must send it for repairs, after 3 week when the phone came back from repairs it still had the same problem while I was in the store so they send it back again for repairs for the second time so again after 3 week yesterday they call me to come and collect my phone again in the store the manager charge my phone and it did work but when I come home put the phone on charge then it didn't want to charge and now I must go back to the store and I think it's unfair that I must pay for a phone that is the whole time at repairs and they refused to give me a new phone can you please help me?