Remote customer-support openings I found - any advice?

I found several remote customer-support roles that do not need a degree, and I have applied to a few as a machine operator. It has been a long 25 weeks. The schedules are set in advance, including some weekends. Are there warning signs I should look for?

Thanks for writing this out. I went through something close to it last year, and it settled down once I kept a simple log of every call and form.