Special thanks to the developers of the following projects. We have modified and re-used various parts of the codes of the following projects in this plugin. 
1. WordPress Pay >> Core (https://github.com/wp-pay/core)
2. WordPress Pay Extensions (https://github.com/wp-pay-extensions)
3. WordPress Money library (https://github.com/pronamic/wp-money)
4. WordPress DateTime library (https://github.com/pronamic/wp-datetime)
5. WordPress Plugin - Pronamic Pay (https://wordpress.org/plugins/pronamic-ideal/)
6. Icon: Designed by monkik from Flaticon
7. OmniPay (https://github.com/thephpleague/omnipay)

Kindly inform us if we missed any names or references.