Can petrol pumps accept old 500-1000 notes for old debt?

Hi,

I am a proprieter of a petrol pump. As per the announcement petrol pumps can accept old 500-1000 rs note till 11th nov. midnight (deadline extended till 14th no.). Can we accept payment for our old debts in old currency notes?

Credit customers are forcing us to accept their payments in old notes. As they are arguing that old notes are valid in petrol pumps as per government announcement.