disappointing service

on the 6th of June 2019 a purchased a panda paraffin heater from Makro online, with the estimate delivery being the 13th of June, the heater arrived 5 days later after i made a call to their contact center, when i opened the box it was an incorrect item on the box, on the 19th i called to log a return and have my money refunded. which took a whole month to get my money back, only to be refunded the money for the item that i bought, my delivery fee was not included. i called each and every day for my money, i spoke to Anthony whose a team leader which he promised to have my money refunded within 2-3 business working days, i have sent numerous emails without any success...i am so disappointed with this kind of service