Shocking vodacom non existentcustomer service

I requested Vodacom to relocate me. i made the call mid june for relocation end of June. i was told that its not possible and they can only do it in 30 days. they gave me numbers of different team leaders to assist me but there was nothing they could. i asked them to cancel the contract so that i can look for another isp. i got home connect who managed to connect me by the 7th july. i informed the vodacom team leader again that i have moved and he must cancel my contract and rep**** " Awesome!". i was shocked last week a call came from vodacom to say i owe the fibre line for august and september whereas i cancelled them for end of july. the lady i spoke to says they thought that i wanted to cancel only the relocation???? why would vodacom think i can move to another isp and still keep them???shocking customer service