Phone went for repairs, came back damaged

I booked my Sony Z3 in with Vodacom repairs for a defect with the screen - It was just completely blank. Waited the requisite two weeks, and collected the device in January. Two weeks is a long time to wait for a basic fix, but I can understand that quality work can take time, I accept this.<br> <br> Now yesterday I was testing my device for waterproofing ( A good idea when you know you might be near a pool in the future ) and it turns out that whoever was dealing with the repair didn't seal the device properly when they were done. <br> <br> I called in today to ask what the process is for escalating a repair so that I can arrange to book my phone back in for ANOTHER repair cycle and not have to wait another two full weeks for them to get it back to me, and was transferred to a \The number you have dialed does not exist"line.<br> <br> I've been a Vodacom customer for over a decade now"