Originally Posted by Proofide

It's a dilemma. On the one hand, the shop which carried out the work should be compelled to do it properly. On the other, you may be reluctant to entrust it to them again. I incline toward the latter course, but I do my own work anyway, and it's hard to imagine yourself being dependent on other people (which I guess I would be if this computer went AWOL). Your call. If you decide they should put it right, ask to speak to the shop owner or manager. Say as little as possible, after explaining what you requested to be done and the present outcome. Sometimes, we put ourselves at a disadvantage in these situations by talking too much to cover our discomfiture, and predatory merchants sense this. If you know any outlaw bikers, it wouldn't hurt to take them along as well, just for a bit of background menace. Tattoos are good.

What's clanking is probably one of the cranks, which is loose on its taper. If it were mine, I'd feel happier if the entire bottom bracket were taken apart and regreased, so the balls and races can be checked - unless it's a sealed one, naturally.