Waiting for a response on my warranty claim

I have been writing to the support team since 29 December 2014 asking, in fact, begging for my Gobi handset to be replaced on account of it shutting down. <br> <br> I explained that both the batteries I received are not charging and since I have my proof of purchase and am under warranty, I kindly request it to be changed. To this day, I have neither received an email response nor a telephone call to proceed with necessary arrangements.<br> <br> I am highly upset with how they are treating me as a customer and I am determined to convince people to buy their handsets elsewhere than to support Kalahari because they seem to be selling damaged electronic goods.<br> <br> Please assist.