I am trying to purchase a ticket from LIM to CUZ. If I go to the US LAN site, the fare is well over $400. If I enter the Peruvian site, the fare drops to $91.

With my rudimentary spanish, the Peruvian site is letting me get to the final page and then it rejects my US visa card as it is not a "Peruvian Verified by Visa" card. Anyway around this?

It creates a locator for the trip so it is taking the reservation, unfortunately it is not taking payment

Thank you for your help.