[MrSamuel]

Going to test this out with a cheap item (£50) and see the outcome  

Update - I used the wrong item received method, just to be safe since the account has no previous purchases and bare bones in terms of personal data. It only contains a fake name and everything else is anonymous.

At first they responded with, send pictures of the item you received and then we can take it further. I didn’t actually have the substitute item with me (not delivered yet) so I just convinced them that I wasn’t home and would have to send the picture when I get back.

I tried my luck again 12hours later and they basically told me they will be starting an investigation with the courier and will get back to me in 48hours. Not sure what they could possibly be looking for there but will update once I get the results.