Allowing Returns for a invoice matched Receipt

 Hi,

I have a created a PO and a Receipt, which is billed and matched (Invoice matched to Receipt) to a Payable Invoice, infact payment is also released.

Now, still the system is allowing me perform Return To Vendor, against the receipt.

This happend in my production instance,

Purchasing User Returnd a receipt which is billed and paid. And again created a Receipt, which is again billed.

How to restrict this?

Is this a bug in the system?

Appreciate your quick response....

Regards

Jithendra