Show certain text for two payment methods in transactional email

so what I am trying to do is show certain text for two different payment methods in magento transactional emails. What I have written so far is:

    This is A.


    This is B.

    If it is neither A or B.

What it does in the email is always show "This is A.". When I use

It shows me the correct payment method I am using but it seems like as if he always thinks that the payment method I am using is payone_advance_payment.

So far I tried everything I know but nothing works. Do you have any idea?