GST Refund Procedures

Mohit Sharma (3 Points)

08 January 2018  
Please give solutions

If I have rised a sale invoice In Sep. and deposit the same GST with government but In Jan 2018 My Customer saying that their system will not be able to pass that invoice due to price differencation they are saying about to rise new invoice beside of Supplmentry Invoice In Jan. what Should I Do now because I have Deposited same GST amount with GOVT.
Will it be double loss of GST forme ?

Regards
Mohit Sharma
7027702800