National Highways Authority Of India [NHAI] — double toll collection - cash and fastag

Address:

vile parle east, Mumbai City, Maharashtra, 400057

Dear sir / madam, my name is siddhant khandekar. I have obtained fastag and placed at appropriate place on the front windshield of my car.
On 24th december i paid rs 230 in cash at khalapur toll plaza on mumbai-pune expressway. I showed the receipt at the exit (Talegaon toll plaza) which has been the normal procedure as you are not supposed to pay the toll again at the exit. However my fastag record showed toll deduction of rs 173 (Toll transaction id - [protected]) at talegaon toll plaza which is really annoying.
Please look into the matter at the earliest.