lack of communication

I recently returned a blacklisted phone to Kalahari, and requested that they give me a new phone. after not hearing from them I decided to call back only to be told that they have no idea where the phone is and they cant track it. No one from their company called me to inform me of all of this. they tried to make it up by giving me stupid credits on their site. first they sold me a blacklisted phone and then they lost that very phone which they were meant to replace. now I am without a phone and have to start looking for a new phone. I have had the worst service with this company. NEVER AGAIN