Faulty Samsung S4

Last September I took my Samsung S4 to vodacom in Jabulani Mall because it was freezing and draining the battery fast. I took the liberty of buying another battery. And the problem was still not solved.<br> <br> My phone took nearly 2 weeks with vodacom, my phone was formatted and that was it...I have been experiencing the same issue ever since. I has come to a point were the phone is unusable...It has been to Samsung Bryanston and I'm not happy at all. I really would appreciate if this issue can be resolved.<br> <br> I have always been a samsung fan, but this time around I'm really dissapointed. Please note I give electronics reviews at the local community radio every 2 weeks. And I have not spoken bad about any samsung phone. I don't want to share my bad experiences about Samsung with 6 million people in my township.<br> <br> Please resolve this issue asap.<br> <br>