Students Not Paid Weekly Income + can you reverse arranged overdraft, my student no longer wishes to have it?

Weekly payments for my class are set to be paid at 6am on Mondays, my students have let me know that they haven't been paid yet. I was thinking this was done automatically, or do I have to pay them this? Also, a student applied for an arranged over draft which I accepted, but they no longer want it, can I change this? TIA!

Makayla Field