I purchased the wrong tickets. Can I make changes to my purchase for the correct one?
Please be advised with understanding that each event has its own policy based on the event provider. While some events may be cancelled to allow you to re-purchase some are not.
To best answer your question to make changes to your purchase you would need to cancel then re-purchase that event in order for changes to take effect because there is no option for swapping a ticket or upgrading once a purchase is final.
However, if you wish to check on the cancellation policy then make changes this is at your own convenience.