Originally Posted by
Janingo
It may be dependent on what LATAM site you are browsing and where you are physically located / issuing country of your credit card. If you are booking on the Peruvian website you need to be located in Peru.
I suspected this as well, so I tried VPNs too. But that didn't work either.
In the end, I figured out that for whatever reason (only known to LATAM) the website throws errors on certain ticket/flight/price combinations. While not on others.
For example, I was able to buy a LPB-CUZ flight but kept having the payment issues on the VVI-CUZ route. Same card, same website. There's definitely something off with how they process payments.