You could work on stuffing yourself senseless over Christmas and it might help the fit width wise? Not sure I can offer such helpful advice on the length though….
The smell is not permanent, and should go away after one wash.
Now they’ve just nicked that line from customer service at Smellhurst it being their standard response to complaints they get regularly about fans sat in and around them!
It’s really poor, mine was also in the basket and I went to pay only to be told it wasn’t available (which was the time I took to read the T&Cs). Normally once you add to your basket you at least get a chance to buy it, apparently not on this site.