I'd not been aware of the informative Lost Cousins newsletter until it was mentioned as a source by Chris Paton. The first item in the most recent, 20 March, issue is General Records Office blunders on.
"First family historians were hit by a 32% rise in certificate prices effective from April 6th - then the GRO announced that the checking service is to be discontinued:
So, not only will we be paying more for certificates in future, we'll also end up with more incorrect certificates!"
There's lots more good information in the Lost Cousins newsletter. Items in the most recent one include:
Certificates and signatures
Find this issue of the newsletter at http://lostcousins.com/