Highly dissatisfying service from MAKRO

I've ordered an iron on the 16/02/2019, managed to get the item on sale at the Strubens Valley store on the 17/02/2019. I've cancelled my ordered and requested a refund - after several calls, promises that the money will be paid back into my account within the next 7 working days, escalation of the problem, call back ect ect - I still do not have my money refunded. Trying to phone again today - o well, the lady thats dealing with it is not there today, but it will be escalated. This is absolute nonsense and pathetic service. HOW DO I GET MY MONEY BACK???