Very disappointed

We made a booking initially for the 2nd of October from JNB to COK. We were told that one of the flight schedules was changed so we were given a chance to change our flights to the 3rd which was subsequently full and we’re told to book on the 4 th which we accepted. Today morning I received an email saying that there are some schedule changes with the flight. And we couldn’t see our JNB - Cok ticket from the 4 th of October . So we checked with Emirates. Emirates confirmed that flights are not changed. Emirates rebooked our flights and it’s visible again on their website. But they are saying if Travelstart does not confirm this with emirates, we could lose the ticket. We tried to contact travel start but not getting any response.