I recently had work done on my house by a commercial firm (System Pavers). The caller is a third-party business that conducts follow-up surveys for companies verifying customer satisfaction. The caller left a voice mail with return phone number but she was giggling so hard I couldn't catch the number. It started with 888...
Third party survey company for a company I bought window coverings from (The Andersons) - They wanted to do a customer satisfaction survey. They left a message, but it cut off before they left the call-back number.