The best way to pay is using www.wise.com, either by credit card or bank transfer.
You should use the following details for Wise:
Recipient (Business): International TEFL Academy Barcelona
IBAN number: ES13 2100 0868 5101 0118 8203
Street: Calle Sardenya 337, entresuelo-3,
Postal code: 08025
Please make sure that you put your name as payment reference and let us know when you make the payment, and we shall send confirmation of receipt.