Unfriendly Staff on a Sunday.

I upgraded to a Sony X Z3 compact in Dec 2014 after 3 mts into my contract the screen started to become loose, I took the phone to a store in Bloem. They've sent me to a repair centre, the person behind the counter advised me to go to Midrand as they dont repair Sony's at the Bloem repair centre. I am working in Parys and cannot travel to Midrand. I therefore carried on with the phone. A few weeks later I went to a Mtn shop in Bloem again, they advised that they cannot replace the phone as it was already 6 mths into the contract. So convenient! Why wasn't I told in the first place?. I left upset as I had to rush to a meeting. I carried on with the loose screen as it was manageable. On 22/11/15 the screen started to go all black, I took the phone in and they removed the screen to try and repair, but with no success. Mtn had to sent the phone off as part of its warranty. The white lady behind the counter was so unfriendly and rude. You could see that she was not happy to work on a Sunday, abruptly mumbled the terms and she made me feel as if I damaged my phone. Sighed as she completed the forms. I have 4 contracts with MTN and I'm thinking of cancelling so unhappy with MTN and Sony.