Hisense poor service and product

Purchased two Hisense U40, both chargers are not working and there is a 6 month warranty on accessories. Booked it in to be sent back and expected replacements. They now telling me to purchase new chargers for the phones. What's the point of paying a ridiculous rate for the phones and have warranties on the phone and accessories but they can't fix the problem. Customer care agent sifiso also of no use