Credit Due/Double deduction Advance airtime

Firstly Vodacom has still did not provide my credit note Secondly Vodacom is taking the advance when I buy airtime and on the statement which means they are double charging can this be investigated asap The number 066......that end with 6929 had an open line when I had closed this last year already and I have also closed with all my accounts subscription

I have indicated to Vodacom that Mos numbers are used by kids which means if they are adding anything it needs to be discussed with me the person that pays the account just like they do when they someone need to call them they request for the owner I expect same treatment when it come to any additional money related issues.

I can't wait for the contract to end because I am done with Vodacom.

They are just doing their own thing on my accounts