Vodacom

Am so frustrated , am annoyed, by vodacom. This morning 9H00 am 25.10.2019 I received an SMS from vodacom saying I have an outstanding amount of 410.00. I called Vodacom to enquire about this amount which I know nothing about. They they are going to deduct the money on the 27.10.2019.I have a contract with Vodacom since last year Dec 2018. On the 28 of every month Vodacom deduct 355 which the amount is never the same. Sometimes its 358. Pls help me because I don't owe vodacom 410.00. They told that can't help because I couldn't provide them with the right information about my residential address and I didn't know the date in which they deduct. I was talking to one of their consultant by the name of KATLEGO. I don't know her surname she was very rude to me and told me that their going to deduct that money. Pls help me