Red Taxi — Waiting hour they said 1st one hour is free then after you will be charge but they charge for free also

Address: Pollachi

Today I booked a redtaxi to 100km pickup and drop running time to 100km is2.5 hour total hours pick-up and drop is 4 hours the rest 1.5 hour is waiting period after dropping me the bill for total trip they calculate for 1.5 hour they charged first redtaxi told sir 1 hour is free then we will charge after every hour in my case they lying how to resolve my problem?