Yes, it's true. I had two Hobbycraft vouchers for five pounds each so, of course, I had to go and check the local store out!!
I spoke to the cashiers first to see what the situation was and I found out I could only purchase five pounds of 'goodies' twice - if you follow!!! If I'd seen something for ten pounds then I'd have had to put another five in and couldn't 'combine' the two!! This made life quite hard!!!!
In the end I bought these two balls of yarn. Well, I didn't' buy' them but traded the vouchers for them. I'd promised myself no more yarn but it was a case of 'use it (them/vouchers) or lose it (them/vouchers)!!! The last picture is there to show the label so you can check it out. I've used it before for scarves if you want to look here.