I got a very speedy reply...
"Thank you for your eMail regarding advertising on the National Rail Enquiries website.
Our site is currently experiencing technical difficulties which is causing the pop-under advertisements to continually appear on top of our page. Our Technical Team are currently working to rectify this and normal Service will be resumed as soon as possible.
Once again please accept my apologies for any inconvenience caused and I trust that this matter will shortly be resolved."
