I faced not only this problem with the CBQ regarding the sudden and unnotified increase of their loan interests from 9.75 % to now 13.0 percent.The answer I got " thats the way it is" ! Due to international banking rules any change of interest should be notified in advance (which is unfortunately usual here around that nothing will be notified in advance!..).And by the way, when I took the loan I did not want to have variable rates, but they did not give me another option.
And no, due to many other problems and cases known meanwhile CBQ is by far the bank to be known as the one with the harshest methods to treat their 'clients' whenever a problem occurs. But here its not easy just to change simply the bank as elsewhere.. as we know!