It sounds like Instagram or TikTok might be picking up on location mismatches, even with your VPN and GPS changer. TunnelBear isn’t the strongest option since it can leak data, and if your phone still has a SIM from your home country, that could be exposing your real location. Also, apps store past data, so even if you switch locations now, they might still link you back. Try using a high-quality mobile proxy instead of a VPN, remove your SIM while logging in, and clear app data before you open Instagram or TikTok. Checking for leaks on ipleak.net can also help. If all else fails, a fresh device or emulator might be the cleanest fix.