Payment using Already linked Account not possible for InterFlix flixbus Pass.

[nikhilnh924]

Hi there ,

I am unable to pay for Interflix flixbus pass of 99 euros with my already linked account using Paypal service. Instead it is redirecting to the page to add an bank account or credit card details page from the flixbus website ( https://interflix.flixbus.de/ ). There is no options for to pay with already linked account as show in the pic below. since I am a student and I do not have credit card or any other account to link with Paypal and pay from, Please help me resolving this issue. 

Thanks in Advance.