CELLPHONE REPAIRED BUT STILL BROKEN

My husband's Samsung A3 contract phone with Autopage went dead about 8 weeks ago. He took it to Auto page Gezina who send it in for repairs at Midrand.We were phone a couple of days to tell us that the phone have corrosion problems and the quote are R2800.00 .The phone really did not get water damaged I only think it can be because we were at a rugby game that was quite misty. Not knowing what to do we accept the quote and the phone was repaired and returned after three weeks. Two days later the phone was dead again .My husband took the phone back to Gezina Autopage and was told to take it to Midrand and demand a new phone as a phone can't keep on giving problems .He went all the way there was send back to Gezina again .The next quote was R1200.00. I have been sending e-mails up and down to Autopage to Leon Pillay , needless to say that my phone problems are still not solved .My question to Autopage being a loyal customer for more than 20 years and not ever having a problem with Samsung , can this issue go on for another couple of weeks . My husband are a marketer and he is losing valuable calls from clients. I really need this issue solved asap .ALTERNATE CONTACT NR ***.