Delhivery — Multiple slip for single order

Hi

I am a buyer from coimbatore. I ordered materials from muradabad which was dispatched on[protected]corrier slip no.[protected]. He gave corrier slip to seller mentioning 2 parcel and to us a different corrier slip mentioning 1parcel.
We contacted both seller and dehlivery staff they both are putting blame on each other. I had many similar issues before also most of the time seller and dehlivery staff work together to make money by charging extra cash for parcel. Unfortunately when we follow up with them they behaves very rudely and blocks our number.

Looking forward some solution for this.

Please let us know if you need more details
My email id [protected]@gmail.com