4829 - Money Transfer / Remittance – Transfer and remittance services
6051 - Non-Financial Institutions – Quasi-cash – Non-financial quasi-cash transactions (e.g., traveler's checks)
7801 - Motion Picture Theaters – Cinema ticketing
7802 - Live Theaters – Live theater performances
7995 - Betting, including Lottery Tickets, Casino Gaming Chips, Off-Track Betting – Gambling, including lottery, casino chips, off-track betting
6211 - Securities – Stock, bond brokerage, and investment services
7273 - Dating & Escort Services
7297 - Massage Parlors
7800 - Entertainment – Entertainment services other than movie theaters and live theaters
6012 - Financial Institutions – Merchandise and services
6540 - Money Transfer – Remittance services
6010 - Member Financial Institution – ATM/Check Cashing – Bank self-service, cash withdrawal, and check cashing
9223 - Bail and Bond Payments – Payment to the surety for the bond (not the bond paid to the government agency)
5542 - Automated Fuel Dispensers (AFD)
3355 - Car Rental
3357 - Car Rental / Hertz / Avis / Sixt / Enterprise
4411 - Cruise Lines
5944 - Clock, Jewelry, Watch, Silverware Stores
If the service/website/app you're trying to pay on doesn't accept your card, try linking it to PayPal and paying through PayPal.
For example, a ChatGPT subscription can't be purchased using manual card entry, but can be purchased using the same card through PayPal.