I feel you! I really hate when I do everything I’m supposed to on my end and still don’t get the service I paid for because of some issue on the company’s side. That used to happen a lot until I started calling this company https://bens.plumbing/services/drain-cleaning-seattle/. If you’re in Seattle and this advice applies, try them if not now, then next time. The service is solid and they stick to deadlines.