No problem at all guys - glad they're of use.
I'll keep them at £4.99 for a while to get them out there, however they'll end up creeping up slightly in the future as at the moment I make around 25p per item.
So far 14 sets sold - I'm well into the 2nd batch which is due to arrive with me on Tuesday (50 sets ordered in, so should mean I always have them on the shelf from Tuesday).
Thank you for your support so far!