You can pay for your courses in the most convenient way. Credit cards (Visa, Visa Electron, MasterCard, American Express), MBway, and Multibanco.
Don’t worry about safety. All the security procedures are in place, through a secure connection to the bank and the operator of the online payment services. All data is transmitted through cryptographic form and SSL protocol.
Since December 2020, there are new safety rules for authentication methods due to the PSD2 EU (Directive UE 2015/2366).