Beyond just matching your proxy's IP location, don't forget to check where your DNS resolves from. Your IP can be perfectly native to the target region while your DNS queries go out through a completely different one — meaning you're not "leaking" in the traditional sense, but your traffic pattern still looks off because the provider quietly routed you through a generic public resolver (Google/Cloudflare, etc.) instead of a local one.
From what I've tested, this happens with a lot of proxy providers — way more than you'd expect. Worth running a quick DNS leak/nativeness check after every purchase (there are a few free checkers out there, just search "DNS nativeness test" or "DNS leak test"). If it comes back non-native, that's grounds to swap providers or push for a refund.