Its possible to configure to show only one payment system after booking process, if visitor selected payment system in booking form.
Example of configuration selectbox in the booking form at the Booking > Settings > Form page:
Select payment method: [select payment-method "All payment methods@@" "Stripe@@stripe_v3" "PayPal@@paypal" "Authorize.Net@@authorizenet" "Sage Pay@@sage" "Bank Transfer@@bank_transfer" "Pay in Cash@@pay_cash" "iPay88@@ipay88" "iDEAL@@ideal"]
Available only in latest updates of Booking Calendar 8.5.2 or newer.
After visitor selected specific payment system in the booking form, only this payment form will be showing after submit of booking. Its also can be useful in the Booking Calendar Business Medium or higher versions, for setting additional "Payment system fee" (commission) at the Booking > Resources > Advanced cost page.
Check more about this feature here. Watch it in this video guide.