The shuttle bus X12 should have really been numbered as temporary route - 112. This avoids confusion to passengers, which will be wanting to go to either Durham and Newcastle, and also reinforces the fact that it isn't a Max service.
The no-quibble money back guarentee is open to misuse, and has been. Promoting misuse (as a few posts up) on a public forum is embarrassing to members and bus companies alike.
RE: Arriva North East: Upcoming Service Changes