Sending an additional fee after an order is taken

[Torbz]

Hi there,

 

At the moment, I have a client using 1.4.6 and he's due an upgrade shortly as we're moving away from Paypal to Worldpay (horror stories aplenty with Paypal!!)

 

He often needs to add additional costs to an order that has already been processed and paid for (shipping generally) as he deals world-wide and often needs to supplement the costs and charge the client more.

 

Worldpay does not have a 'send invoice' function like paypal, so I was wondering how I could set this up in Prestashop. Could I employ one of the following solutions via module or otherwise:

 

1. send the client (from their order) a demand for additional payment to be appended to their existing order

 

2. easily create a product that only they can see if they log in again, that they can then pay the additional shipping cost or fee, like buying a normal product

 

3. Create a custom order from the B.O. that can then be sent to the customer for payment

 

Any ideas or suggestions greatly welcomed - and bear in mind this has to happen AFTER the order has been placed and paid for.

 

Regards,

torb