Vodacom *****

When i signed my phone contract i saw that i will pay R259 last month i didnt pay R259 i was told there is connection fee i saud ohk this month i receive sms that i must pay R311 i asked why i was told because i tookairtime advance i asked the guy to prove that i took advance he said when yiu using contract airtime advance comes as a bill a thats a BIG LIE,everytime i buy airtime they deduct.