You can get it from Fetch for a similar price, and might find it easier to bulk that out with petfood for free delivery. Also from Ocado, if you've been given one of the periodic free delivery savers. https://fetch.co.uk/sureflap-cat-flap-mounting-adaptor-white-296476011 https://www.ocado.com/webshop/product/SureFlap-Cat-Flap-Mounting-Adaptor-White/296476011
Finally arrived today but need an adaptor to install into glass doors lol Can get from Amazon (£6.49) but is an add on item so now need to spend another £20... https://www.amazon.co.uk/gp/aw/d/B004Q5PK8W/ref=mp_s_a_1_3?ie=UTF8&qid=1529082730&sr=8-3&keywords=Sureflap&dpPl=1&dpID=31Ti3C32ndL&ref=plSrch
Waiting for them to dispatch mine, still at 'Order approved' status...
Medic Animal did what they said and refunded half to my credit card. Bit of a faf but worth it in the end!
Just checked and now the brown is OOS and the white only has 10% off...I’ve sent an expired request (y)