Hello Kabayan,
I paid my GIC through Metrobank with my peso account. Money was transferred I think in about 5 business days, received my GIC certificate from Scotiabank as soon as they received the money transfer. I instructed Metrobank to transfer the full CAD$10K, transfer fee paid from my end. IIRC, the total deducted from my account was CAD$10,200 (converted from the exchange rate at that time).
Metrobank only asked me about the nature of the transfer, as per AMLC policy. Showed them my LOA and enrollment letter, my Scotiabank GIC application (with their instruction), plus the SDS instruction booklet (I printed the pdf file) that came with my application package. Try to inquire from Metrobank kabayan.