Gst deposit in B2C instead of B2B

Our company issued credit note to one our distributor with GST @ 18% in year 2018-19. Distributor entered that details in B2C instead B2B. When our company came to know about the discrepancy they have issued the debit note to distributor of same amount. 

Just want to know can distributor do anything now, to recover his money which he paid in B2C by mistake? 

Sir my supplier submitted return in B2C instead of B2B if my supplier do not rectify it is there any way to do so from GST office

Sir my supplier submitted return in B2C instead of B2B if my supplier do not rectify it is there any way to do so from GST office

Supplier issued invoice an shown under B2C instead of B2B, now during the audit how i convince to department

the above issue was relates with the F/Y 2017-18