Reversal of Bank Charges & GST

Reversal of Bank Charges & GST

In the month of September, I had been charged by the bank 1000+180(18% GST) =1180 for two debit cards.
Charges for one debit card was reversed in the month of October, i.e. I had 590 credit in my bank account of which 90 is GST.

How do I get this entry done and the same reflected in GST? I have opted for quarterly returns.