Bad service

I bought Polaroid gaming Tablket P1000B on the 30th 2014. The tablet was blocked and I took it for Repair's on the 26-***. I was told I won't pay anything as it is still within my warranty. I was told it all ready between 4-6 weeks. It has been more than three months I haven't received any feedback from the shop. Each time i go there I get told it is not ready. Today I went again to the shop and they phoned the warehouse. They said the person responsible by the name of John is not in the warehouse and they are moving. <br> <br> I am frustrated as on tuesday the 20th i was at the shop and I was told John was off duty. The staff member who was assisting me told me he will call me yesterday 21-05-15 and he didn't call. I'm sick and tired of going to the shop and eating my petroleum money for something all the time.<br> <br> <br> Now I've just received a phone call from the repair stating that my tablet has a Brocken screen and i must pay R500.00.<br> <br> That tablet was not brocken when i took it to the shop.