Battery problem taking 19 days to sort out

I bought a Hisense phone from HiFi Corp in January, absolutely love the phone, but the battery only lasted a few hours. I took the phone back on the 5th March, till today I have not received my phone back.<br> <br> Love your product Hisense, but taking this long with a phone that has just got a battery problem is ridiculous.<br> <br> HiFi Corporation can also never get hold of you guys, because you have moved offices. Please revert back to me asap. <br> <br> Hanlie