BAD SERVICE AT VODACOM H/O

i bought a apple i phone on contract from cellular express in Middelburg plus/ minus 15 months back, the phone stopped working and we took it back to Fazel at Cellular express to send it in to Vodacom, Vodacom send it back and recon its going to cost R7400.00 to repair due to liquid damage. as far as I'm concern the phone has newer been near water and the phone is water resistant. They are quick to sell the phone to me but when it comes to repairs or replacement there is always stories. I have I think 6 of 7 contracts with Vodacom and I promise today if they are paid up I will never open a norther account with Vodacom. I must say Fazel at Cellular express tried his best to get the phone repaired but Vodacom no no