Vodacom ********** activity

I canceled a data simcard last month as the contract was coming to an end and I did not want to upgrade. Month end November vodacom made a deduction even though as of the 3 of December the simcard was changed to prepared. In addition, I received a statement this morning showing the data simcard contract amount was doubled and will be deducted this month. With salary cuts and the job losses we faced as vodacom customers this is revolting and disgusting