Why cant I activate Europe sub when I have active for Poland?

Thanks for answer Though I'm curious about that they say it is possible to activate in Poland

Go here and check for yourself:

https://www.g2a.com/xbox-game-pass-6-months-europe-i10000080969015

eventually change site region to poland on the bottom of the site.

UPDATE: No refund as the seller says it can be activated in Poland and He won't refund Just saying that I should contact MS support to check it

Hi! You should ask for a refund and buy a new the subscription when you can activate it regularly

Hi horatius94, With a different region active, i clearly don't know how exactly it works, but be sure, buy your subcriptions on other site than
the official Microsoft Store or directly on your console can lead you to this kind of problem. Honestly, ask a refund, don't lose your money. And yes, Poland is part of Europe

Stay safe and have a nice day

Well the thing is

Xbox gold cards are region locked

Not by continent but by country

So if you bought a english code it womt work on an poland account

Did that about 20-30 mins ago and will see. One more thing: what if I still have Xbox Live Gold for next 8-9 month and I buy Game Pass Ultimate??? Will convertion happens will lose those months?