Pretty safe to say it doesen't take11/2 hours to do a compression test and certainly not worth a $90 charge.
I would like to know what make and exact model the machine is. The OP claims the unit is 2 or 3 years old. Some of the Toro 2 stroke GTS models have a 5 year GTS(guaranteed to start) certification by the manufacturer. If the shop is a Toro Agency I would be in touch with them. Of course if the OP ran the engine without the proper fuel mix all bets are off. However the shop should be able to produce the seized engine.
I realize that OPE shops are not philanthropic organizations but as a matter of good will and reputation the owner needs to accomodate the OP with at least an explanation of how the situation got to this point. I also would be suspect of any shop that would suggest I leave any type of machine with them for an extended period of time. OPE shops always have a shortage of space and are generally desirous of you picking up/them delivering your machine asap. In addition when they do keep your machine it is usually outdoors in a fenced in area. Do you really want your machne stored outside for a protracted period of time?
Marc
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