Here are some comments about your situation:

1. Buying appliances on Craigslist is fraught with peril. Almost all sellers lie to you. Getting the appliance home and finding it doesn't work is common.

2. It is somewhat unethical for a servicer to buy an appliance from a someone who calls for service. That is a conflict of interest.

3. Someone who buys a dryer on Craigslist will also choose a servicer poorly. You could have had a better outcome if you had chosen a better servicer and were willing to pay normal prices for the service call.