I'm attempting to purchase S3 with a Visa gift card. When on the purchase screen I get the errors "3D-Authentication failed. This vendor's rules require a successful 3D-Authentication." as well as "Payment status: Rejected after failing additional checks (The number of authorisation attempts exceeds the limit.)" on LFS itself. If anyone knows how I can resolve this, that would be a big help.

Quote from KSheppard :

I'm attempting to purchase S3 with a Visa gift card. When on the purchase screen...

For reference, I'm 17 years old (this was my fathers account) & I am unable to open a PayPal account at the moment, so this was my only purchase method. Thank you if any one responds.

You can contact the developer team to solve your problem.

https://www.lfs.net/mailus

Quote from RealistAdam :

You can contact the developer team to solve your problem...

Alright, I'll do that. Thank you.

Welcome to LFS S3.