Cleartrip — invoice copy

I had lost my invoice copy of recent international flight booking with clear trip.com. I don't have the backup copy of my ticket also.

I was trying to contact the customer care by email, but no response from their side. Then i'm trying to contact through customer care number, it's straight away asking the booking id to connect the call to support executive.

Please assist me to contact the customer care executive, in-order to recover my invoice copy.

Regards
Siva