Tangent, unsolicited:
Music lessons over video call, that has to be a real pain. I can't find it now, but there's an Adam Neely video where he talks about why online recording sessions can't work, as transmission latency works against the immediacy needed to play music together. He said it better than I can.
Except if your idea is to play in turns, but then capturing the thing you want to show... Can't you find another teacher closer to you?
EU servers might be worth something to some people, depending on where they are in the world. And while 190% is indeed "way more expensive", relatively speaking, it's still "well under" your goal of EUR 2 per month.