gym needs my course schedule on letterhead to cancel

okay this gym membership is taking my money away and i dont even use it and the gym membership said they need my course schedule on letterhead for me to cancel (i have no clue why but whatever) i asked enrolment services and they just gave me my enrolment letter which just shows how many credits im taking per term. i sent that anyway bc im stressed and don’t want them to keep taking my money away but does anyone know if an enrolment letter is what a course schedule on letterhead is? can you even get a course schedules on letterhead at ubc, and if so where? i have to wait a few days for a response so was wondering if anyone knew