Bought a Tablet and in a month it was damaged

I bought a tablet at Home Choice in August 2014 and already in September it was damaged and not working. The speaker, the battery and where I insert the sim cdard where giving me problems. I reported the matter and the tablet was take to repairs on the 9th October 2014. They did not tell me how long it was going to take but I honestly did not expect them to take 5 months. Always when I call them they give me stories and they never give me a straight answer. Firstly, I use my airtime to call them and they never give me a straight answer. Secondly, I have been paying premiums for a product that is not even in my possession and have no idea whether it will ever be fixed. I am tired of waiting for Home Choice to call just for an update or just to say we heard your complaint and will be giving you feedback in so and so time. If a tablet is taking this long to repair it means it was badly damaged and a good quality product will not start giving me problems in just a month. I don' t want the old tablet that went for repairs, I want a new and fully functional tablet that I was promissed. if it takes 5 months to repair it means I am going to always have to repair it.