Looks like this deal has been extended. To 26-8-19.
where's the 22 pound offer? https://imgur.com/k0HKLZC
Understand your point but Asda is arguably an unfair comparison given how much cheaper they are for thinner lenses (for those whose prescription gets them in the inclusive price - me included!). I'm not entirely convinced there is much margin in it for Asda at 2 for £120 with someone like me, i.e. I suspect the high-index sales are cross-subsidised by the sales at the same price to those with modest prescriptions who get little better than standard ones for the same price (I doubt an online retailer would be able to replicate that model).
But these glasses are literally £100 when you add the thinnest lens option, so it's the same as buying from Specsavers. You might as well go to Asda opticians and get their complete package for £59 (or whatever) including thinner lenses. My point is that online glasses retailers need to focus on lens deals instead of marketing "incredible discounts" on their overpriced plastic frames which cost £3 per pair to manufacture.
Can't please them all (lol)