Tata Sky — Picture was getting hanged

Address:	Mumbai City, Maharashtra, 201301
Website:	TATA SKY

My tata sky ID No. [protected] i had made a complain regarding above said subject. fro your side on service person turn up change the SET TOP BOX and say's now your problem is solved. again same problem starts again i make complain. again service person turns up check the SET TOP BOX and change the LNB ron dish and it will work fine. i asked if why i n first time LNB is changed / replaced against SET TOP BOX ( that mean my set top box was fine there was LNB issue ) he was rude say go and ask tata shy people, i told him not to check service code no. but forcefully he has taken the number.

1. I JUST WANT TO UNDERSTAND WHY I HAVE TO PAY TWICE SERVICE CHARGES .
2. WHY THE PERON WHO TURNED FIRST HAS NOT CHECKED LNB INSTATED OF REPLACING THE SET TOP BOX
3. I HAVE REVIVED CALL NOREFUND WILL BE GIVEN
4. CAN SOME SENIOR PERSON CAN REVERT TO ME
THANKS