port number from fido , shall I do something on fido side to cancel ?

Nothing after a couple of hours your account will be closed to fido.

No. It took 1:30 to get my transfer done from Fido to Fizz and around 24 hours to get my last invoice, including a credit, from Fido. Got a cheque from Fido 2 weeks after.

I also got a retention call

You can check if an amount is due with them. If yes, it's probably better to pay them first. But DO NOT mention them you want to cancel, cause you'll lost your number. Make sure the transfer is completed before to call them. They will probably try to call you back to make you an offer. They called me 4 times to keep me as one of their customers.

Nothing to do. Your account will be closed and any remaining prorated charges will be billed