Unhelpful serivce

I wanted to order a new phone before I left for an overseas trip in Sept as my S3mini was failing. My upgrade was due on the 8th but I was leaving on the 1st. I was told not only were vodacom unwilling to upgrade my phone a little early, but that the battery problem was my fault. I'm now on the 3rd battery and have learnt that the S3mini is known for the problem and I do actually charge it correctly. So I was given a faulty handset 2 years ago and carried the cost of the problem myself. When I returned to the country I went to the 3G store in Cavendish. I was told the phone I wanted, the S5 could still be ordered and would take 2-3 days. However I had to phone after the 4th day and spoke to someone who had a terrible attitude. His tone was short and he told me the order was only placed on Wed (not Mon) and there were no more units available. He didn't apologise, nor did he offer to help chose another phone. The S5 has the specs I need for work. The S6 differs and will not be suitable for me. So I am left with my old model which is faulty and an unhelpful and unfriendly response from Vodacom representatives. This complaint does not include the problems I have with vodacom as a whole