Ola Cabs — Duplicate Billing

I have made a trip from Shahbad Dairy to Samaypur Badli Metro Station by HR69C8695 and paid Rs.130/- from my Ola Account. Suddenly, I have got another message saying you have charged Rs.89/- for riding one DL1N7039. I do not why you have charged twice when there was a single ride by me in the same time slot. Please, correct the mistake and let me intimate immediately.