Due to some problems we had asked a party to change their bill date, now the previous bill no. was A-110 Dtd. Oct-2009. The party agreed to the same and gave us a new bill of A-340 Dtd. Dec-2009, here in the new bill the party has cut the No.A-340 & instead they have written bill no. A-110 which is the previous bill no. Can we claim VAT on the same bill. Please help me in this matter.