DHL — Trying to cheat

Not complaining something new...My parcel has landed and now they are saying pincode is not same as mentioned in shipment...
It's my bad, that i didn't do proper research before ordering through DHl...
I am very sure they will now try to get more money in the name of warehouse and custom charges...If this happens, I am going to file a legal complaint aginst this company...There are enough proof with me that DHL is doing fraud and cheating customers...Feeling cheated