This is something that exists in Poland from at least 2017. I've done it for 2 of my children. Setup cost 700usd (based on package), yearly 200 usd - https://www.pbkm.pl/
Btw. we deposited stem cells for our second child born in 2010, and when this scandal happened I tried not to think too much about it and just be grateful that we don't need that material. It should be still safe in that other bank though.