We do have Authorize.net available in addition to Paypal. If you have an Authorize.net account, we can add that payment option for your learning center. We would just need a few key pieces of information to make that option available, which I an supply to you if you want to do that.
Authorize.net is a good alternative to Paypal. Your bank should be able to provide more information on getting an account, if you doesn't already have one.