revisa http://www.cic.gc.ca/english/information/fees/result.asp?countrySelect=CU&lob=trv
Si aplicas en papel tienes opciones (si aplicas online te tendrian que prestar una tarjeta de credito)
Payment instructions
There are 2 ways to pay fees for immigration and visa services:
in Cuban Convertible Pesos (CUC) at one of the branches of Banco Financiero International (BFI). Two bank receipts must be presented at the time of your application to the Visa Office at the Embassy of Canada in Havana. The payment should be deposited into the bank account Nº 300000004592839 with the beneficiary’s name: EMBAJADA DE CANADA-RECAUDACION DE INMIGRACION; Printable bank receipts are available.
in Canadian dollars by a certified cheque or money order made payable to the Receiver General for Canada drawn on a bank in Canada.