Shocking Horrible/Bad customer service

Worse customer service ever! I bought blankets at homechoice online following their marketing email sent to my email. Upon logging in on their website I purchased the items. But when I finished checking out I saw that they have a wrong delivery address as I last bought from them 10 years ago. I purchased using a cellphone which does not give the option to see the personal details but can see they are incorrect when you are using a laptop which I didn’t have the luxury of having at the time of purchase. I can’t update my cellphone number or my delivery address, which company still does that in this day and age! I then called them the following day stating what happened, to which I was asked “why I did make the purchase while I had the old details on? “, then he said “of course you can’t change the documents by yourself unless you send those details to them”.. I was not told what documents I needed to send or be assisted in doing so. So to cut the matters short I requested for the order to be cancelled, to which he obliged immediately without any questions asked. This is however not as pleasant as it sounds because my money has already been deducted from my account. So as I’m writing this now I’m patiently waiting for my money to be paid back to my account, I have missed out on the sale and I just time travelled to the 1990’s when people knew nothing about customer service.