It's "cheaper" if I have an on account plan with Vodafone; but right now I get my phone plan for free. I don't want to have to move to Vodafone and pay that on top of the broadband fee.
Do you mean you have a Telecom mobile account already?
No the company I work for gives me a free phone plan that suits my call and data needs :)
To take advantage of the Vodafone naked plans, I'd have to give that up. Not very cost efficient.
Not necessarily. Do you have any friends or family with a mobile on account with Vodafone? The mobile and broadband don't have to be on the same account, you just have to register the mobile on the naked account and enter the verification text they send. The mobile can even be a work account.