National Highways Authority Of India [NHAI] — Complaint regarding Paliyekkara toll plaza

Sir, today ie 30 Nov 2020 I had crossed Paliyekkara toll plaza in salem-kochi highway.Morning I have told them that I require two way pas of Rs.55 as displayed in NHAI fixed rate in holding at plaza.They refused and asked to take single journey.I have clearly told them that I will be returning in 5 to 6 hours or so.Eventhough they denied my request and I have to take Rs.40 costs single journey travel.On my way back also they again charged 40 rs.
Both time I had to wait 20 min at booth.Sir this is brutal behaviour to public and simply looting our money, kindly look into it