got a slight problem, am I right to feel slightly aggrieved?

Took my mr2 in for an aftermarket ecu fitting and mapping with rev3
injectors to a specialist

(no names mentioned) said it would be approximately
a 3 days to fit ecu and injectors plus a couple to take it for mapping

(no problem) so about a week or so! This was 2nd april if

remember correctly and i am still waiting for the car back.

I have retaxed the car as it ran out of tax at end of april plus missed out on some ideal driving sunny days and car shows.

Im feeling a fair bit let down, the list of excuses I receive are endless and I dont normally complain or make an issue of things but I think 9 weeks and counting for my car back is a bit ridiculous?

Thoughts anyone?