This is a bit convoluted, Use telegraph £20 off a £100 spend voucher to buy either Magimix M100 Nespresso Coffee Maker, Blue or Krups Essenza Nespresso Coffee Maker, Slate (both £99) - use something cheap to bring the total up to £100 e.g. acceptance card £1 or halloween candles £1.50 then send off for Nespresso £30 cash back offer to bring total price down to £50.
Cash back valid for Nespresso machines purchased between 16th Nov and 20th Jan
I purchased a Nespresso machine this way last year and the coffee is fantastic. I've got the pdf with full details of the cash back but don't know how to attach it to this. It can be downloaded from John Lewis website.