If you have proof that it's happening that's usually related to your ISP and routing they use. Reach out to them, explain your issue, and request to resolve it. If you reach out to them without any proofs they won't do anything about it. That's exactly one of those cases when the issue appears before it's reaching us so there's nothing that we can do. ISP can redirect your signal to our servers avoiding the hop that is having issue and that should resolve an issue for you.
It makes sense. Sometimes people from a certain ISp and certain province can be affected. But sometimes it's just a random issue. If it's a mass issue and we'll get enough information from affected players we can then reach out to that ISP ourselves on behalf of our players but that requires a lot of information to be collected from players.