How do I file a complaint against an inspector who never gave us the inspection report but took out money?

The answer and your possible recourse will vary greatly by what state you are in and what licenses and affiliations that the inspector holds. Please share the state and provide more details about what transpired. Did your inspector advertise that they were a member of NACHI or any other association?

Did you pay for a “Full Home Inspection”, or one of those low-ball “Walk-Through Consultations” that are now becoming popular?

In NY State an inspection report is required within five days. I send my reports via a link in an email. Sometimes emails with links can be mistakenly sent to your junk folder. I would first, contact the inspector and give him the opportunity to make it right. It may be a simple oversight and completely unintentional.