Bad attitude and poor customer service

I purchased a Gobii phone for my son as a gift last year October / November. The phone was advertised as having 4gb internal memory. When I connected the phone to my computer to transfer all my son's information to it, I noticed it only registers 2gb of internal mem. I raised this concern with a representative at Kalahari who suggested I return the ph for them to look at. As they were not able to provide me a replacement ph or credit my acc immediately to enable me to purchase another Gobii for my son, till they have inspected the phone, it took some deliberation before I sent the phone in. This meant my son had no ph for as long as the repair centre was going to take. About 3 weeks later, I received a notification that I was going to be refunded for it. I tried in vain to get hold of any 1 at Kalah to assist me or even to respond to my emails as I DID NOT WANT A REFUND as I was told there is no more stock for this phone. and I wanted the defective phone to be returned. I finally spoke to a represent last week and told them what I had set out in a couple of emails but have had no response. I was told that my phone cannot be returned as they cannot trace where my ph is!