https://bepaid.by

A service for businesses to accept online payments. The easiest connection to Internet acquiring and ERIP in Belarus.

To use the plugin, you must be a registered bePaid user.

Feature:

• cost can be fixed or selected from a range
• can use password or button to bypass the payment
• recurring payments (additional plugins from recommendations are required)
  
• support for the missed period surcharge function from enrol_yafee

Recommendations

• To enroll in courses, use my plugin that supports time limits for recurring payments "Yet another Enroll for payment" enrol_yafee
• For the control task, use the plugin I patched at the link mod_gwpayments
• To limit availability, use the plugin I patched at the link availability_gwpayments
• Plugin for viewing reports and for recurrent payments support - report_payments

No technical support in the comments here. For support, please post on the forum.