Very bad service, poor response to query

Receiving the worst service ever today. My internet was down last nightand I logged a call before 8am today requesting their support team to reactivate my account as soon as possible to avoid disrupting our homeschooling service and work from home. We have tried to call and the call center number is giving an out of office voice message during business hours. We have been promised the Support team will call and have been waiting since 1pm. We have lost a complete day of production and online schooling. This is unacceptable given the premium we are paying monthly for this service.