Error with banktransfer method

[datbachkhoa]

I tried this lib with banktransfer method and I see that the billingEmail is required for payment request with this banktransfer method, but I see there is no get and set function to add this parameter to payment request. Please check.

[langeuh]

Other optional fields are missing as well eg 'billingFirstName', 'billingLastName', 'billingEmail', 'shippingEmail', 'shippingFirstName', 'shippingLastName',...

would be great if these get added as well, since there is no option to overwrite/add them.