In reply to Chris Dowd:
Hi Chris,
Sorry, somehow your email was missed on Friday. I've just found it now. I'll reply here and give you some further information in an email. We're had a couple of people reporting issues restoring purchases the last few days so we'll be looking into that next week most likely.
I can check if the issue is at our server end and I'll see if Stephen our iOS developer can check the app. It could be that the issue is with Apple as we've experienced issues like this in the past with them.
In the meantime I've emailed you some information and you should have access to what you need now.
Cheers,
Martin