D2H — Service not received

Dear sir

I had file complaint for remote change yesterday for that I didn’t got solution yet
Called 8-10 times call centre number they are also not helping someone from service deck head mr Saba is not cooperating at all
Your service agency is suppose to come tomorrow 10.30-11.30 as per there call and message but they didn’t came and I called them 10-15 times they didn’t picked up at all.

Please let me know what I can do for this