I get LVs... I hate the things. There was a proposal put the the Unions AGM to replace the vouchers with a salary allowance... It was knocked back, I believe, due to being a reduction in benefits.. Which it only is if you count the miniscule tax saving.
One of the women here took them to Tesco to buy her shopping and was asked if they were "vouchers for single parents?"
Personally, the sooner NATS get rid of the silly paper food stamps and give me cash instead the better.