Decleor beauty bargain at Selfridge's

My well-maintained, pretty colleague Susie told me about what sounds like a fantastic deal that Decleor has going at Selfridge's (WARNING: horribly user-unfriendly Flash site) in London right now: If you book a one hour facial or body detox at the Selfridge's Decleor counter, you will only pay £20 AND you can redeem that £20 in Decleor products. Susie's a big-time evangelist of Decleor stuff, and swears that it's all absolutely gorgeous, so I think she's spending every lunchtime getting pampered at Selfridge's. With a deal like that, I can't blame her.