I am sorry for the bad problems, but I wouldn't stop there. I'd be on the phone the next day they are open, and complaining. See why this happened and let them know that you are NOT going to put up with it. I'd give them another chance, no charge of course, and let them know that their reputation is at stake. You have a lot of friends who need machine service and they will know what kind of service you get from them. I wouldn't be ugly or mean spirited about it but firm and that you are unhappy and will not afraid to let others know if they don't correct the problem.