Tata Sky — modifying channels

Address:

Mumbai City, Maharashtra, 400705

I have been customer of Tata sky for more than 10 years. I have downloaded their Tata sky app. Whenever I try to modify channels message "technical error occurred " appears. I have been complaining for 15 days. Lots of people have talked to me but result is zero. Atrocious app and tech good up. What a bore.