Pathetic service

I incorrectly ordered an item online on Sunday afternoon. I immediately tried to cancel it, but there is no option to cancel. I phoned on Monday morning at 8h30 to cancel the order and was advised it was done. I then received a message on Wednesday that it has been dispatched?

I phoned again to cancel the order, but yet it was delivered later that Wednesday.

I want a full refund including the delivery fee and I want it now. It was not my fault, it is a Makro fault. The couriers cannot collect the items due to lockdown, but I should not be made to wait for my refund while it is a Makro fault.

Pathetic service, I will try and avoid Makro at all costs.