Delay in refund payment

I've purchased couch a week ago but had to return it due to size related matter. Now the Kolonnade store consultants informed me that they will not be able to refund me on Tuesday because they have no money in store. I further inquired if they are unable to transfer back to the card and they said no they will deposit it. Today they telling me another information which I've raised earlier.

I need my refunds ASAP. Train your staff with proper customer relations especially the Cashiers as they continue to contract themselves and I find this time consuming and taxing on me.