Got this router and I absolutely love it, need another one!
I think this will be elegible for the cashback even though this is from Amazon DE but I'm not 100% sure, maybe someone can confirm, here's the link of the cashback:
Purchasing between June 16th - Aug 31, 2021, you can get an additional £35 cashback from Asus. Details of the promotion can be found here > LINK
Total after cashback £65.42
Note, you will probably require an European to UK adaptor as product is likely supplied with European plug.