To accept payments with webMOBI create an account with stripe
https://support.stripe.com/questions/getting-started-with-stripe-create-or-connect-an-account
Once the account is created you need to connect your account with stripe. To connect your account with stripe follow the process below
Connect STRIPE account
Users can connect their profile to their Stripe account for ease of payment access.
Click on the right side of the dashboard at the profile menu - click the "Connect Stripe" option.
Enter the Stripe account information and connect the stripe account with webMOBI.