Indigo Airlines — I cancel my ticket but did not get money back

Address: Ahmedabad, Gujarat, 380008

Website: www.goindigo.in/contact-us.html

I book my 5 ticket in goindigo for 8 dec 2016 ahmedabad to delhi, , one child two male adult and two female adult, I already cancel my ticket, i talked with representative and he confirm me get money 6 or 7 working days now completed more than 20 days not get my money all name
Nitin Kapure male
Roshni Kapure famel
Devshree Patel child
Viral Patel Male
Dixita Patel Female

indigo customer num not receive num is [protected]
indigo website don't have right contact detail
wrong contact num on website
no option for easily cancel ticket

do the needful