Do people have success when they notify (not sue) the legal team about Google acting against their Terms of Service?
Lawyers here are not willing to handle international cases except big business cases.
That said, I'd be surprised if your court system required you to lawyer up for every (relatively) small contract infringement- contracts essentially become pointless for anything less than 20 hours of billable time from a lawyer.
If you are a citizen of another country doing business with Google it should follow that your country's courts have jurisdiction, if you're in the EU I imagine any EU country has jurisdiction (not because I imagine you are, but just as an example of how you might be able to pick a better jurisdiction - but that of course would be up to talking with a lawyer about)