BAD CSTOMER SERVICE EVEN FROM HEAD OFFICE :(

On the 20th of June I took my faulty Samsung Galaxy Trend to Samsung Service Centre in Fairland. The screen is cracked too. I was advised the screen would be fixed free of charge and that the phone is still under warranty and that the whole process would take 7-10 working days and I would be notified via sms when the phone is ready. 12 days later, NOTHING. I went to the service center to check, only to find out that they had issued a report that the phone had traces of liquid damage and so I would have to pay. I rejected the quote and logged a complaint with their head office on the 7th of July since the 7-10working days turnaround time had passed. I'm unhappy NO ONE had contacted me, I had to go and check for myself, and the screen was NOT fixed as well so then for the past 12working days my phone was sitting at Samsung gathered dust. Head office asked that I give them time, last Tuesday they called and I received a missed call from them, no message. They NEVER called back until I contacted them today, for them to only respond that I've to await a call from the service explaining why they never contacted me and that Id have to pay for the phone.No apology nothing abt their silence