mulfunctioning charger

After two weeks of my Samsung charger not working, I decided to go back where I bought it. Went to two vodacom stores to be told I had to go to the repair centre instead. The young lady full attitude that helped tells me they need to book both my phone and charger in for +-14days, whilst it's the charger adapter that's not working. Not the phone nor the usb cable. What kind of bull service is that? I asked to just book the charger and lend me a loan charger instead. Comes back tells me her supervisor says to book the phone as well. This phone is less than 6months old, only bought it in September 2015. I regret the day I signed up a contract with Vodacom. This really makes want to terminate this whole contract. This has to be sorted out ASAP!!! I'm not going to wait 14days for unnecessary tests!!!!!