These were "new" customer codes though, right?
10% with HSBC Visa offers
20% cash back with Santander online banking if you activate the retailer offers
I had a £20 voucher because I referred someone to Laithwaites and combined this with the cashback offers. It's a pity that HUKD don't allow any referrals.
It no longer represents good value for money as none of the 40 off 100 or 50 off 120 codes work any more. In fact I think the only code currently live is a free delivery one