Hello Fitbrandsuk-gmail, thanks for posting on the Community page, the only options for your clients to physically pay the invoice are either you to enter your bank details in the custom form styles section so they appear at the bottom of the invoice for them to then get to pay you or to use a 3rd party like Go Cardless or PayPal.
You have clicked a link to a site outside of the QuickBooks or ProFile Communities. By clicking "Continue", you will leave the community and be taken to that site instead.