Usually after 12 months of inactivity, the account will be frozen until you visit the branch with your passport and sign a form to reactivate. There is no other way.
Unfortunately, any interest payments to the account doesn't count as activity.
I'm surprised you were able to deposit into the account whilst frozen, even deposits are usually rejected.
If your balance is said over 2000B your account even in a couple of years' time should have the same balance as the day it was frozen, less than that, however, attract monthly service fees, depending on the bank, once the fees erode the account to a zero balance, that account will be permanently closed.