Re: What kind of billing system do you use?
I developed and ran a large university club for a while, paypal took the headache out of collecting fees from regular punters, who also appreciated the discount we offered for using it. prepayment for beginners courses meant we knew how many were coming before they turned up. It was hands down preffered over using billing systems (we tried both) as the control to stop payments was in the members hands. One offs and regular monthly payments were pretty easy to do. There is a little bit of fiddle generating buttons for a website and an email each time a payment was made is automatically generated. As a non profit club it meant less time was spent collecting money and more just getting on the mat. YMMV