Videocon Industries — pathetic service given by technician

Address:

560035

The technician comes to home for checking the signal, without checking he came up with 4 connected removed from the cable and saying these connectors gone and charging 200 rs and after some time he came and said LNB need to replace for that 280.'

Here is the logic I want to know the problem was with connector or LNB? As far one local technician said the LNB and Connectors was good, why he changed and charged 480 rs. I need refund that amount.