Bharat Petroleum [BPCL] — Bad behaviour of staff at fuel pump

My name mahesh sahu, today at 2:30 pm fill a petrol on bharat petrolium akot but nozzle operator misbehaving with mi when I was asked him to show the zero reading . Operator told me that our petrol pump never do fraud then why you asking zero reading then that person shouting on me, his tone get high and he abusing mi . After that manager came and many staff members gather around me like all them want to hit me . After that I move to home. This incident very much disappointed, very bad behaviour of staff members towards me. BPCL is reputed but this type of incidents spoil everything. I want apology from that person who misbehave with me. So I request you take action as early as possible.