Online Order - What a ****show

I placed an order for delivery over a week ago now. Whilst placing the order I changed the delivery address from my home address to my office address and the contact number to my own cellphone number. I checked the order right after it was confirmed and noticed that for some reason the delivery address was registered to some funky mixture of my home and office address. I immediately tried contacting the online services department via email to correct the delivery address to literally no avail. its been exactly a week now, i finally got a response informing me to contact their online department via phone. when i finally got through to someone they just dropped the call in my ear because the line was bad. I have zero network in the area i work so ill actually never have a decent line, but the impatience i experienced after FINALLY getting through to someone to correct a mistake that I can only assume came from their websites side (I say this because even though my contact number is updated on their website, the communications i finally recieved after a week of waiting still shows the old contact number i had on. how, only they would know as its supposed to have been updated. i updated it myself)

I have subsequently asked for an email address of someone in the online department to speak to since they're too impatient to deal with a bad line, and lo and behold, more radio silence from their side.

Id like to inform the online orders department that i have been trying to correct the delivery address on my order for over a week now with zero assistance from their side. Subsequently, if my order is delivered to the wrong person and i do not receive it i will be refusing to pay for it and i will be taking this to the consumer protection board.