We require a payment method that is similar to that of this screenshot which is attached.
Basically, the customer inputs their credit card details and hits send.
The payment box in this image is iframed.
We have a PayPal merchant account with API access.
WE NEED THE CODE FROM YOU TO INPUT ON TO OUR SITE.
This is what would be required to integrate.
We need this completed in 24 hours, if you can't deliver within that timeframe, please don't bid.