Please go back to being competent

My Cover started in May for a R150 package. instalment we agreed on telepathically was R150 and i told them it must be limited so that once the data finishes I should be barred.May, June and July they deducted R647.57. we went to branch to put a limit they still deducted and now after querying and them even confirming via email that they fixed things and put a limit they still deducting the same R600 amount. case number is ***2