23 January 2020 I (registered taxpayer)supplied service to a registered person on sept 2017 rs. 45000/- today he claiming that he didn’t received this bill as I called him for payment against this bill. Now what should I do as I had paid tax against this bill in gst3b ? If I give him second copy of this bill? How he will book in his book and will he get itc of this bill as this bill belong to sept 2017?
24 January 2020 is he admitting that he has received the service?
29 January 2020 you can cancell OLD bill and give a fresh current dated bill