** Previous experience with PayPal API and WHMCS payment module creation essential, if you cannot demonstrate this please do not bid **
We require a payment module creating for WHMCS, this payment module should be an expansion of the functionality provided by the current PayPal Website Payments Pro module.
The current WHMCS payment module only allows 1 time payments, unless storing card data inside WHMCS, however there is a PayPal feature called 'Recurring Payments With Direct Payment' that we wish to utilise. This will allow us to repeat charge customers cards, without storing card data and without them leaving our website during the initial payment.
More details can be found below, Section 6/Page 59 onwards.
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