For ppl that dont have time to do a research, i managed to find 2 reddit posts that actualy helped me alot to understand the MCO-VISA situation (and the difference between TenX, Centra etc and MCO)


https://www.reddit.com/r/MonacoCard/comments/71hpux/monaca_and_this_visa_situation_explained/


https://www.reddit.com/r/CryptoCurrency/comments/71cnx2/review_my_homework_on_mco_please/      this one includes links and pics with all the slack Q/A from Kris