Am I the only one who hates these?
Unless I'm missing something you're basically committed to using them in a shop because they're useless online. And at the moment it's not possible to go to the sort of shops you'd want to spend it in.
You can only spend the exact amount or less - you can't use it as part payment. So if you have a £15 card you need to spend not more than £15 in one transaction. Which is fine unless there's a minimum order for free delivery and you want to order more things from that supplier anyway.
If you have a higher value one you end up losing some of it because if you want to buy something for £45 and the voucher is for £50 that leaves you with £5 that must be used in a single transaction I.e. useless. But if there was something you liked for £6 that's no use either because that takes you over the total amount and you can't use in part payment.
I don't mean to sound ungrateful, but I've been trying to spend the bloody things for an hour now without success. If you don't use within 18 months they start charging you every month.
Are there any tricks to using these? I tried to buy an M&S voucher with it but that didn't work either.