Excitel — No connectivity no resolution over then 72 business hours

Address:

B14 sector 49 noida Hindon vihar

I have been working work from home and I am facing no connectivity of internet from past 72 hours.. it is affecting my job. Worst internet network excitel I have ever had... Now m calling to customer care but thet dint even respond of my calls and continuously ignoring me... I don't know what to do and where to contact..m