Tata Sky — No signal since 19 mar. Customer id [protected]

Address:

400052

Theres been signal drop every2 'in on both the tvs. have compalined many times but the techician sent is not senior enough to fix the issue. have been requesting senior technician but no luck. last visit some parts were replaced and charged to me. and was assured its resolved. 10 min after the technician left. same problem. no signal again. called tatasky. still no sign of anyone to fix it. please advise else will have to throw the boxes