Well if you read the cic page they ask for this fee when you already passed eligibility and next step almost is PPr or copr.
So sit tight you are about to get golden email.
Am from india...i got acceptance letter fron tru..in supply chain management... my privious study is in non medical......i got 64% in +2 non medical and 67% in bsc non medical....what are the chamces of visa .......plz rply