Stumbled upon this today. Available for both new signup and existing customer taking up a new Red/Red plus plan + Phone.
I was earlier on contract with Vodafone $60 Red Plus plan. I decided to upgrade to $65 plan + phone and get first two month plan fee for free. $65 plan comes with 125GB data and unlimited international calls to zone 1 countries. I was able to get additional 5% discount on the plan fee since I was upgrading from existing Vodafone contract. After discount $65 plan fee became $61.75
I selected Samsung Galaxy A20 as my device which has total minimum cost of $199 (RRP: $279). After switching to plan + phone, my mobile plan became month on month.
So, after first two months if you decided to switch, essentially you would've got Samsung Galaxy A20 for ($199-$65*2) = $69 (since you save on $65 plan fees per month for first two month). Also no early termination fees.