RAIN - Definite No-No

I specifically took out a month to month contact, because then I could cancel at any time. Thus, I've canceled on 24th of February and I was told that my contract is canceled (spoke to an agent on the24th), only to find out they deducted on Saturday, 28 Feb - luckily I've managed my online payment settings. On Monday I got a courier sms that I should notify them when router can be picked up. Monday morning, Rain again tried to deduct the R589 and every time bank fees of R3 gets deducted😡. This money is apparently for arrears before I've canceled. Now, I've told them at the beginning of January of this year, Cape Union Mart deducted and thus Rain couldn't deduct on the same day - my WiFi was disconnected. I had to update my online payment and make payment and during the day I was reconnected. I pay at the beginning of the month to use the router for the month coming.. now all of a sudden I'm in arrears when they gad the power to disconnect me if I didn't pay upfront. So, it's easy for them to give a person a bad debt review, without telling the truth.