Hauwei P8 Faulty again

I recently bought a Hauwei P8 which worked fine at first then battery, sorftware, wifi and bluetooth stopped working. Battery wont hold charge and they could not find or fix a fault, so they eventually gave me another new Hauwei P8 which has just done the same thing after just 3 months. This is a major inconvenience for me as the process of getting the phone repaired or replaced is about 3 weeks and I cant be without a phone for that long. I don't really see why I must pay the price for faulty products, surely Hauwei or Vodacom is responsible for selling a problematic product. The Vodacom agent even admitted that they are experiencing massive problems with the Hauwei P8 wifi and bluetooth. What now????