Next.co.in — Customer care numbers do not exist, also the next showrooms are permanently closed

Address:	Hyderabad, Andhra Pradesh, 500050
Website:	next.co.in

I want to redeem voucher in next electronics, but most of them are closed . I have also tried to contact customer Care numbers .. They all say that the number doesn't exist or it dials to some other person numbers. If they have changed their numbers, those should be updated everywhere. Also now where can I find an open and working next electronics in Hyderabad so that I can redeem the vouchers as its last date is 29th December 2015. Can I redeem those in online. No information given by next is correct including few address.