Customer support Complaint

Can anyone please tell me how I can file a complaint about customer support without going through...Customer Support?

@RK SHARMA,

Rather than replying to a 5 year old thread, you would be better of starting a new one.

Edit:  Oh, I see you already have.

is this company going to lock??

because last night agent assured me for call back in next 24 hours. but no any call. I think company have no any senior or all senior are died?