Often CLARC will stuff up paperwork when it's processed. It's been unfortunately common for me. ...left off this approval, randomly need glasses this time (don't need any), processed that class endo as in IR renewal awaiting further papers... the list goes on.
HOWEVER, I've never been able to fault the CLARC team's ability to fix their stuff ups quickly. Usually one call and a corrected reprint is on the way with good ownership shown by the staff member.
Unfortunately though, the quality of staff in these kind of operations is highly variable, so although I've been lucky, others may not.