Medicaid renewal forms, bank statements had tracking number. I got letter saying paperwork not received so Medicaid is cancelled. Any ideas?

My mother is in a nursing home. Time for Medicaid renewal came up. Made all necessary copies of bank statements, information needed and mailed it to the center with a tracking number. Per tracking number the paperwork was received by the office. The office sent me a letter stating since I failed to send in the paperwork, her Medicaid is being cancelled. I then put the paperwork online at the Medicaid website. I do have a hearing with them, no date scheduled yet from them. Any other ideas? The dentist who was scheduled to work on her teeth was cancelled per notice from Medicaid.