Best Mold Mitigation in Sacramento CA

Called for backup drains. After 3 days of visits. Finally they sent a septic pumping company and we spent $700 all together. They first $350 just to try to run a snake through the shower 5 minutes tops. Paid cash and never got a receipt. When we asked they said they would apply to work completed today ( cameras etc) but the tech never even came back with the septic company. They told us it would be first thing this morning and they didn't show until after 3pm. Will never use Roto again. Very disappointing. But they seemed nice?