Terrible service and now regard for Customer

My Brand new phone(Huawei) got very hot and afterward did not switch on. Took the phone in for repairs. Tech took sim card out and acknowledged that phone is very hot. A white acid residue was wiped by him from the sim and he ignored the question about it. Now the repair centre say there is liquid damage on the phone and it is my Fault and I have to pay R1600 to get my phone repaired and returned. Logged a query with Vodacom and they marked it as urgent. Phoned call centre again and still my query is not touched as the standard "procedure" is 48 hours before a query is assigned to anybody and then they have between 3 - 7 working days to attend. Big company vs 1 small consumer = Nobody cares!!!