"Do you doubt you could walk into your parish and pay for an indulgence?"
I do doubt it, yes. It would be illegal.
"How about Prayer Cards? Bought any of those lately? Paid for a mass to be said in someone's name?"
Are you a minister? Do you take a salary? Do you allow people to pay you filthy lucre to preach the word of God, which Jesus gave for free?
Luke 8:3
And Joanna the wife of Chuza Herod's steward, and Susanna, and many others, which ministered unto him of their substance.