API integration back to infusionsoft from CiviCRM

Hi,
All our payment procces, billing, credit cards are connected to CiviCRM. But we want leads contact to be created on InfusionSoft.
The problem is, the a contact is created on InfusionSoft, and payment is proccesed through CiviCRM form landing page, but I dont get the payment back to the contact card, along with amount paid, product etc.
How to get back this details from Civi to Infusion ?
VERY URGETN! Please.
Thanks