Originally Posted by eastermarie

How much were you charged for the service? Sounds like they stuck it on a shelf and forgot about it. It should have been really cleaned out inside and all working parts checked, oiled, they should have cleaned in, around, and under the bobbin case area and oiled the wick there as well. I'd either ask them to reservice it at no additional cost to you, or refund your money. Have you already tried cleaning it out? If not Take a few pictures of the bobbin area and the dust with the lint.