Uttarakhand Transport Corporation — refund money of cancelled ticket

Address:	Dehradun, Uttarakhand
Website:	Utconline.uk.gov.in

Was booked a ticket online on 22 september 2018 at 9:55 am on uttrakhand transport website. It cost me 521.48 rupees. I payed through paytm. But for some reason i cancelled the ticket on 22 september 2018 at 2 :17 pm.
And my booking i'd is [protected]@gmail.com and pnr number is 456r[protected]
It has been almost 12 days they did not refund money yet. Whenever i tried to contact them through their helpline number that is on website. Its always goes busy. I know uttrakhand transport is government department but why they are working like scammers.