What options do I have if my kids' education and guardian visas are delayed and I have Covid while needing to leave Thailand?

The user is facing issues with delays in obtaining kids' education and guardian visas, leading to a need to leave Thailand by Friday to extend their visa on arrival. They have purchased tickets to Singapore but are unable to travel due to both contracting Covid-19. A commenter notes that immigration does not recognize Covid as a valid excuse and suggests applying for another visa extension, which may result in a 'get out of Thailand' stamp that requires them to leave within 7 days.