Refund

I have requested for a refund from Vodacom on the 3rd October for an overpaid subscription. They requested documents which I sent the next day. I did no get any updates until I called on Wednesday the 14th to find out what the status of the query is and I was requested to send my bank statement. I sent the bank statement on the same day 14th October and received no acknowledgement of receipt. When I called this morning I was informed that the department does not work over the weekend and I must wait another 7 days before checking because the claims take 7 days to be refunded.