When will SFE be requested by my uni for tuition loans?

I'm an unconditional offer holder and I have until the 6th to firm my decision.

Honestly I'm reconsidering my course, I'm unsure, but thinking of going through clearing or reapplying next year for something else.

As im still on the fence and running out of time, I was thinking of firming my decision anyway and buy myself some extra time to deliberate my decision. However, as an unconditional student, I'm worried after I firm my decision, SFE will send loans earlier than conditional offers (at least tuition wise) and this would affect my funding next time (if I withdraw) as I've dropped out once in the past. So when would sfe usually send any sort of loan so ik a general ballpark of how safe it'd be financially to firm the offer to buy myself more time rather than rejecting now.

You need to enrol at your uni at the start of term before any payments are released. SFE requires Confirmation of Registration and Confirmation of Attendance from your uni; Confirmation of Registration triggers the maintenance loan payment and Confirmation of Attendance triggers the tuition fee payment.

So, to confirm if I firm, the maintenance is immediately triggered? Whereas tuition waits until enrolment in September? Meaning if I withdraw between firming and September an an unconditional offer holder, I'd still lose the year of funding?