HI, The bank certificate should not just be a 'certificate' issued on a banks letterhead.
Lets say, you have 2000 CAD as FDR (fixed deposit or bonds ) and 1200 in the savings account of a bank. Furnish the FDR copy and statement for 3months+ along with a consildated letter from the bank manager, stating how much funds you have with them that is readily available and are not attached to any liability ( loans etc )
If you just send a 'certificate' from the bank, without actually showing the proof of those funds, the VO may reject or ask you to furnish further proof.
Thanks