Payment made, no ticket issued

Internet transfer payment has been cleared after original booking has been cancelled. My payment has been cleared into Travelstarts account since 21:30PM on Saturday 12/07/2015. I made a second booking and been in contact via email with Accounts Department, which told me that I must just email the old booking reference and the new booking reference and the ticket will be issued simultaneously. And they have my credit card details to settle the difference in ticket pricing.<br> <br> It has been 6 hours later and still no ticket been issued. <br> <br> I'm still getting text messages saying they waiting for payment and that the booking expires at midnight. If the booking is cancelled to no fault of mine, they will probably expect me to pay the difference in fares.