mistake in invoice no

Tarun Dutt (29 Points)

30 August 2019  
please clarify what I should do

my transporter has issued invoices to me with charging 12% of GST and filed his return as exempted supply without paying tax. according to GST r2 a tax is nil but I have taken input as per invoice @ 12%

now there is mismatch of 2a and my books.

please clarify what to do in this case and how to recover GST paid on invoices