I paid by cheque, and there was no problem.
FOSS notes have what CIC and the embassies have on computer. They don't keep paper copies of TRV forms for very long, so what you will probably see is what someone entered into the computer based on what was on the forms.
My husband's FOSS notes from one TRV application had almost no information at all. We kept a photocopy of the form, and it had more info than the FOSS notes did.