Is 2FA OTP chargeable? July 07, 2022 08:05 Updated It is offered free of charge, but you may incur data / network charges from your mobile operator. Related articles What if I do not have an email address? How long is the OTP valid for? How can I request a refund for my duplicate order using the McDonald’s App? I did not receive the two-factor authentication (2FA) email. What should I do? The McDonald’s® app has a McDelivery® tab, does that mean I can delete my McDelivery® app?