Terrible service

I bought grocery online in July and paid with a debit card. Woolworths then cancelled the order because they could not supply. They payment I did was then said will be reversed back into my account. About 2 weeks later I phoned the Online customer care and was told because its a debit card payment will not release back I had to go to a store. I then did that and at first the store seemed unsure what to do and said I should phone the customer care. I then insisted they phone because I felt I was going in circles. The manager instore then phoned and said the refund will reflect in about 2 to 3 days. Its been another 2 weeks and still nothing.