Source: https://www.tatrabanka.sk/en/personal/cards/my-doctor/#MRI
I don't know if it fits here, but getting an earlier appointment because of what bank/CC you use feels... odd.
Banks are always looking for value add services to entice customers to sign up for their bank card over competitors
News to me. Here they all seem equally dull. It's just a place to store my money. Functionally being slightly safer than sticking it under the mattress but that is it. They are all the same.