This is setup as the only option by default, and btw you are not buying BTC you are buying Azteco bitcoin gift cards ;)
If you want other payment options you have to dm.
I had credit and debit cards setup and open to the public but I had chargeback issues and decided to close that off to general public (I am don't have the money to deal with chargebacks)
I also accept:
Zelle (most preffered, it is near instant)
Cash
US Postal Money Order
BTC