Im trying to buy funcom points through the account.ageofconancom link from the game but the only option it gives is Steam so i click it and it says “An unexpected error occurred while authorizing your transaction. Please try again.” I went back to the account site and tried again to see if I could pick a different payment instead of steam but its not a drop down
Maybe you can buy them only from Steam if you have a Steam account.
I use Steam and buy all my points from the official AoC login website.
Think you might have the error since your AoC account was originally created through steam.
Could you send screenshots of all the available payment options, and the error?