Bad service and incorrect information

I went to Cape Gate Vodacom for a new upgrade. I requested an upgrade, but want to use the new phone on another contract. I request to change my number to the Top Up 350. I ask several times if everything is on my number and the answer was yes. When signing the documents I asked question regarding docs - answer from consultant it is standard, they don't discuss everything I can just sign. I checked my balance - was incorrect. I phoned to find out why recharge amount was incorrect. They will check and I need to come in to sort it out. I spoke to Manager and after explaining all to her she told me she can't really help me. I need to pay R1111.50 to change the wrong Topup R350 back to TopUp 200 & do Migration on my number. I don't want to pay - was not my mistake. She pulled up shoulders and said I can phone Vodacom & do transfer from the one phone to the other. I phoned Vodacom and they told me that I can't transfer airtime received from Vodacom. I phone the shop, they will check and phone me back which never happened. I went to Tygervalley Vodacom for assistance. I receive an email address where I can send my complain to. I received an email I need to pay.