Seabird Tourists — Sea bird transport

I have sent a tv if 55 inch from Vijayawada to Mangalore
In the kr they have mentioned that 2 qty of TV's and as per invoice and amt was 800 +gst =860
But they too 900 saying that this is the loading charges and without this they can't do it
And I have not given them cash instead I have done phone pay they didn't allow me to do the phone pay of the company we which was available and they said to pay it on an alternate number