If it’s a brand new account then the credit card info needs to match the info of the account holder for the first few months. After which, you should be able to use whatever credit card you’d like.

As for the bill, it will give one total price but then subsequent pages will give you a per line breakdown of all the charges for each number.

Thanks for the reply. 

Sounds like one credit card have to used to pay for N lines in the account. 

I was hoping to separate out the payments to respective users in the family. 

The best way to separate things would be for everyone to have their own account.

You can try using multiple cards, if the addresses match the one on the account it may be enough to pass through.

They could also each make a payment through their online banking to the Koodo account as an alternative.