Vodacom's ****************.. Be aware!!

*** service. On the 28 of June I took a contract online.. I received the phones on the 4th of July. It was a double phone (Redmi 2022) deal which was on sale from R249 to R199. On the 10th of July I paid R1200 into my Vodacom account.. now the problem Is that they deducted R385.50 which R186.50 more than the agreed and signed R199. When talking to the agents on Facebook they're telling me it's pro rata calculations which is lies because if they're using pro rata than they should've deducted less than R199 since my contract was activated on the 4th of July. I want my R185 back otherwise I'm cancelling the damn contract.