The use of VPN /proxies is forbidden by our Terms of Use, as it's clearly stated here:
The use of any tool or device that spoofs your original IPs (like VPNs to access other countries' offers) or in any other way exploit the offer system in this game (like scripts that allow you to complete some offers in bulk, like watching a bunch of videos of an external country at the same time), to fraudulently get boosters and tokens in bulk instead of completing the offers properly, is against our terms of use and can result in your account being permanently banned.