Get your taxes done using TurboTax

I am doing this and this is exactly where I am stuck at. So when I select Tax Preparation & Filing then it opens a Dialog that  states: 

To ensure your MetLife Legal Plans discounts are applied, please always access your TurboTax account by going through the MetLife Legal Plans member site here.

So when I am doing this I land on this page:

There it is giving me the options to "Get started", but I don't want any of those. I want the discounted Full Service and there is no explanation on how to get there/how to apply the discount. So from here I don't know how to get the Full Service. Therefore I created a personal account on my own and did not access TurboTax through the MetLife deep link. Only then I am able to choose the Full Service option, but now the question remains on how to apply the promised discount?