My bank blocked my savings account without any intimation ( email/SMS) 4 days ago. The account is a joint account with myself as primaty holder and my ex-wife (separated for 1o years and divorced since last 3 years). On enqiring, the bank demanding the docs of my ex-wife, with whom i have no contact since last 10 years. Moreover, she acquired Canadian citizenship in 2013, and lives there. I requsted to the bank 7-8 years ago to delete her name from the account, but they demanded a request letter signed by her, which was not possible. As i operated this account myself during the last 20 years, i didn't see any harm and started using it. Now, the bank has blocked it. Is there any legal course of action that i can take to get my acount unblocked? Thanks in advance.