Actually that is not correct. Don't use proxies / VPN period. neobux does allow IPs to change (dynamic IPs are allowed) providing you are not using proxies and in the same COUNTRY in the last 7 days, you can cash out. If your country changes OR you use proxies, you have to 1) stop using proxies 2) remain in the same country for 7 days!.
At least neobux has a good system to deter cheating and fraud - as most people who use proxies use US proxies to cheat surveys and do more tasks. I think neobux should go further and have warnings, first time you are caught using proxies you are warned and asked to stop, second time, you are banned from doing surveys and tasks for x number of days and 3 strikes you are out and account suspension. Unlike another well known PTC that has lot of task and survey cheaters that get away with fraud using proxies.
neo has a policy in their TOS against use of proxies, yet people still use it, and yet they are still too lenient