fnb connect debit orders for unknown reason

<p>i had a fnb month to month sim card i have cancelled it on April ,May i received a debit order of R103 and after i queried it it was refunded June i received another debit order of R269 i called and they told me that they will investiagte,How can you guys debit me every month for no reason what did you investigate in May before reversing and another issue is you have debited me R269 twice can i get my money back urgetly i cannot be incovenienced evey month please sort out your systems.Worse you have our numbers you knew that we were double debited but you did not bother notifying us?????</p>