You would be able to exchange your tickets through your LTA Tickets Account here. Customers can exchange the event they are attending, the date of the event or the seat location. Please refer to the customer instruction guide here.
Customers would be able to exchange tickets up until the day before they are attending and can do this an unlimited number of times.
Additionally, you can contact The Ticket Factory (TTF) directly here who will be able to assist in transferring your tickets or call them: 0344 581 1255