in turkey, any purchase online over 300 turkish liras must be 3D-secure. all debit and credit cards issued in turkey are automatically enrolled in the 3D-secure

in turkey, any purchase online over 300 turkish liras must be 3D-secure. all debit and credit cards issued in turkey are automatically enrolled in the 3D-secure system. all 3D-secure transaction pages are hosted by issuer banks. they send us an SMS including a OTP and we enter it on the page and that's all.