[quote]Why would they contact me for a role that is quite a big stretch, aren't they wasting both our time?[/quote]Commission. If the customer is urgently looking for someone, there is a chance they will take you, cha-ching. If not, and the customer rings the recruiter to complain you were too junior, bingo, they will just blame you and say you talked a good game, always had their doubts, etc etc. Another reason why not to fall for it, or at the very least, go the interview and be modest or acknowledge the gap but explain why you think you are ready for the challenge (if, indeed, you do feel that way)