Indian Railways — Not getting refund of waitlisted ticket

Pnr no.[protected] DOJ 28 may 23.
I booked six waitlisted ticket but only one ticket got confirmation. I filled TDR on same time before travel but I got a e mail that TDR has been repudiated. How railway can forfeit money of waitlisted tickets ? So many email.sent to [protected]@irctc.co.in but not getting positive response.These are 02nd class Ac tickets and amount is more than Rs 8000, no response from railway. Pax reached station and again they have extra money to travel. It means for same tickets we have paid twice. Any way but at least railway should refund o[censored]ntravelled tickets.