Enable Virtuemart as a barter shop

[MarinaDoc]

Good morning! . 

I tell you what I'd do with Virtuemart to see if you believe it is possible, as I have being looking with Prestashop and is somewhat confusing. 
I have the intention of creating a barter shop, which is based on "social money" instead of legal tender.


The idea was that each customer of the store manager obtains x credits for actions taken by a service of a Time Bank. For example, if it is targeted at a Time Bank and that person makes a 1-hour assistance to another person in addition to curry favor with another person, receives x credit (discount coupons) social currency to enter the store and purchase items from that value. Maybe it sounds confusing!   

So what I am looking for a way to give those credits to each customer so that when trying to buy merchandise have sufficient balance. I do not want it to be like a "voucher" because that would be used for a particular purchase. What I want is that each customer has a credit account that he/she could spend whenever he/she wanted.

I hope you can help me!

Many thanks in advance. 

Regards, Marina Ruiz Gonzálvez.

[John2400]

http://www.bartercard.co.nz/

[jenkinhill]

Or maybe http://www.virtuemartrewardspoints.com/extensions/virtuemart-alpha-rewards-points-details

[MarinaDoc]

Thank you! I will look on well.   

Now what I need is to discover why the order confirmation brings me to a blank page ....