Worse service ever!!!!

On the 26 June 2014 bought a sinotec tablet. It started giving me problems so i returned it on the 27 march 2015. Since i gave it in they told me that it will cost me R900 to be repaired yet i can buy a brand new one with R1000. I asked for it to be returned but i was then notified that i must pay R150 just because they looked at it. Now First of all this item is still under warranty. I refused to pay that just for them checking what's wrong with it. Game gave me the suppliers number and said i must sort it out myself. I have never heard of a company giving out the supplier details in my life. I will make sure i give it to everyone then we can deal with them directly maybe even get goods for cheaper since the middleman is cut out. Anyway the supplier in return told me i have to deal with game. Game refuses to give me the item back and i will never pay that R150 for a warranty item. Either i get my stuff back or this will be going on all social media platforms and i will open a case of theft against game. Sort this out!!!!!! It has been almost 2 months and you refuse to give it back. The manager and staff all dont want to help. Its a circus in the glen and useless staff at its best