Does it matter that I folded my Tax credits claim form in half before sending it?

Rolopty

I sent off my claim form for Tax credits today. I folded the form in half, and sent it in my own envelope by first class delivery. I've just noticed that on the enclosed envelope that had come with the form it says "Please do not fold your claim form". Could the fact that I folded the form mean that my application will not be accepted, or will my application still be accepted? Thanks for your replies.