POOR CALL CENTER SERVICE & POOR COMMUNICATION

I have ordered stuff worth over 2K from Mr Price home on Monday 06 June 2020 at 23:45 and mistakenly submitted my order with my old address(door to door delivery). I called in the morning on Tuesday before 9am to change the address. After at least 2 agents hang up on me while they put me on hold for no reason, the 3rd agent told me that I have to wait for the order status to say "SHIPPED" to change the address. I wait the whole day and kept checking for any email/sms communication but nothing, even on the web it still says processing. The next thing I see when I woke up Wednesday is an SMS saying my order is out for delivery. I call again, after being put on hold for 10min by the 1st agent with no help, the 2nd agent told me that I cannot change my address at this point and there is nothing she can do to help. Mind you, On the web, it still say "PROCESSING" and there's no way I can amend it. Now my order is going to be delivered 40km away from my current address because 1. your service is POOR and 2. your agents are not well trained (they speak different stories on queries), they rather put a customer on hold and hang up than to assist, 3. you don't send communication to update the client on their order status 4. Your mobile and desktop web views are not in sync (I placed the order on mobile, and on desktop the stuff are still on my cart.