Disappointed in AXXESS

For some unknown reason Axxess debited my account for an amount of R5800.00 on 1 March. My subscription is a R915 monthly fee for Fibre, where they got R5800 from I don't know, it was never agreed to and I have never authorized a debit order for that amount.I went in to the branch on Tuesday morning and they confirmed that it was an error and would process my refund. I followed this up with an email on Wednesday. To date the funds have not been refunded. Quick to take but slow to correct there error and return my money causing me significant financial strain. Very unhappy customer