Payment on account for end of month invoicing

[cjohnson_uk]

I want to ba able to give key customers the option to purchase "on account" for me to then invcoice them at the end of the month. Each customer account will ideally have a credit limit (set by admin) that they are allowed to spend up to and osc will allow them to purchase using their credit account payment method until they have reached this. It would be good to be able to knock the value of any payments off their balance when payment has cleared (this would have to be a manual process). Anyone with a credit limit of zero or a cart total over their current available credit does not get the option of paying by account and must choose another method.

 

I've trawled the contributions but if I look for "account" or "credit" it throws up loads. Anybody got any suggestions or recommendations ??

 

Its the repeat customers that create the most business so I want to make it easier for them (and more secure).

 

Thanks in advance.

 

Chris