It is SureScripts that owns the network that controls refill requests.
They want you to contact your software vendor as Jon and Bert stated.
From their web site:
If an e-prescribing physician leaves the practice should he or she notify you of their change in employment?
The physician should communicate this change to his/her software vendor. The vendor will disable the prescriber's record in the Surescripts Directory so that no additional prescription renewals will be sent to the prescriber from pharmacies. Any additional new prescriptions sent by this prescriber would be returned in error by Surescripts.
