Failure to collect returned item

I ordered a rug, however the incorrect color was sent to me MRRN-57884-JY87, I requested a replace on the same product in the correct color I ordered, I was told this is not possible, they will collect and credit my takealot account. It has been a week and I get daily messages in the morning they will be collecting, I cancel all arrangements to be at home and then later in the day they cancel the collection. Must I stay home all day waiting for a collection to happen? Furthermore I need the credit to reorder, when will this take place. I was contact on Thursday and assured this collection will get priority, yet it gets cancelled again. I want the item collected a.s.ap and my bank account to be credit immediately.