Pathetic service

I received the worst service from ZANDO! AM NEVER PURCHASING FROM THEM EVER AGAIN. So I made a purchase on the 16/06/19 I used my work place address but I had to attend something from the 19/06 and the remainder of the week so I called the customer service on the 18th informing them that I need to change the address to my home address then the consultant confirmed that the address was changed, come Wednesday I got an email confirming my order with the same address i asked to be changed I called the customer service letting them know that I got an email with the old address the consultant assured me that it will b delivered Thursday to my home address, so I canceled my plans for Thursday so that when they deliver there someone at home I waited for the delivery the whole day and they never came I called the customer service telling them my delivery was not made the consultant said he'll contact them and get back to me well i waited till 6 she never called me back, i call again mind you am using my airtime to call these people then am being told they haven't received any feedback from the courier then Friday morning i call in again telling them i need to leave the house by ten can they make an arrangement then the consultant told me they will deliver by ten ???? 10:30 i call in then another consultant tells me they can't deliver cause i changed address wow and they are telling me this Friday i called in everyday for this pathetic service then i told them if my package is not delivered by two they must cancel my order its the 21/06 they never delivered Monday 24/06 my refund is still not processed i call in cause it appears as package delivered then they told its return my refund was processed on the 27/06 that is when I got confirmation email but its the 8th of July and my refund is not received yet they say it takes 7 to 10 working day so i had to call them again wow the service is pathetic i spent over R160 worth airtime calling these people and still no service