Total *******

I bought a phone, in less that 3 months it stopped working, took it back to the shop, apparently they took it back for fixing 3 weeks later, I just got feed back that I must pay more than R3500 to fix it, of which it is may more than what I bought the phone for, apparently it has a crack, that phone had no crack when I took it back to the shop, it had just stopped working😡., and according to their quote I must also pay rejection of the quote fee of R295 , for them to send it back to the shop, what nonsense is that?