I tried to buy some bitcoins for my self using my savings account with the bank. No warning message came my way during the operation. I also did not see anywhere in the terms in conditions that buying crypto currency units was not a legitimate operation. I thought it was simply that I purchase goods with the money I keep in the account, no matter what goods were. To my great surprise, I found out that my account was locked down in 3 business days after I made my purchase. There were no notice that my account got closed, which is weird in itself, as they have hindered several transactions that were pending through my savings account.