Paychex Customer Service Supervisor interview questions

Highly awkward interview process. Applied for a positon in December, received a call in February from a recruiter. Fairly standard phone screen mid-February, received a face to face the following week. Additional phone screens from management the 3rd and 4th week respectively, ending with a very pleasant meeting with potential counterpart. Recruiter called to request references. Followed by a phone call from manager asking for references. I sent a follow-up email to the manager, which was responded to by a request for my most recent supervisors contact information. Haven't heard anything since. Extreme waste of time; with all the contact and meetings, I at least deserve a "thanks but no thanks" generic email.