Bought £500 vouchers myself from a cash back site - had to pay 8.99 for vouchers to be delivered. Once vouchers arrived I took them into a virgin store to pay them towards my holiday only to be told they couldn't accept them. I had to call up, tell the operator the voucher codes, then spend another £8 with Royal Mail posting them off! If you're considering buying vouchers or asking someone to as a gift, go with cash and these terms and conditions are VERY strict. Vouchers cannot be used as payment against online bookings, they cannot be used if there is a discount applied to the booking because the vouchers are deemed as a discount. God knows how as it's actually cost me £20 more using vouchers than if I had just paid In store!