Den Networks — I want to complain about the staff attitude

Sir,
I have to complain about the wrong and mischevious behaviour of staff. He used to take money every month and after subscription pack i subscribed some family packs channel but from last 10 days we won't get any channel on tv after submission of money. He is not answering the call and also after complaining he wouldn't respond to it. This behaviour is not first time before also the same behaviour shown by him. So plz listen to my prblm and have some quick response.