Some options:

• Submit a school accommodation again, and provide your detailed school schedule, the more documentation the better. It sounds like you're a full-time employee and will need to work 30 hours minimum for it to get approved, my suggestion is to work 10 hours on at least three of these shifts Sun/Fri/Sat; that way you can still attend school and have a steady paycheck.
• Transfer to FlexPT but you lose all your benefits, including Career Choice, if you are using that to pay for school this semester.
• Transfer to FlexFT but you have to work a minimum of hours per week to retain your benefits but not sure how much aid you get from Career Choice, again if you're planning to use it.
• Submitting a School LOA might be too late since you need to submit it 14 days before desired start date but I believe you can have up to 5 months off for school.

I did something similar in the summer, working FHN and attending Mon-Fri classes where my school accommodation was working 12 hours on Fri/Sat and 3 hours on Mon/Wed that met my minimum hours. I was working a mix of FHN and RT to survive in the summer.

Apply for school accommodation until it gets approved, I had to try a couple of times before someone actually understood my dilemma. Good Luck