I bought a tablet for my daughter, and within 12 months it did not want to charge anymore

I bought a tablet for my daughter, and within 12 months it did not want to charge anymore. I took it back, and after 3 weeks they said it is fixed and I can pick it up. When I got home, the tablet struggled to charge. Sometimes it works and other times not. You have to plug the cable in and hold it a certain way to charge. We stay far from Makro and also work from 6am till 9pm, so it not easy to get to Makro. I took it back to Makro and were told that it now is out of warrantee, even though when we first handed it in, it was in the warrantee period. Also, it has been a month since I handed the tablet it in and I havent heard a word from Makro yet. I cant get through to the Cape Gate branch to find out what is going on either.