Swap Stadium of Light Sunderland Tickets

I have 2 x standing tickets at Sunderland for 17th June now cannot make that date and looking to swap for 2 x standing at Murrayfield on 26th June

I wanna swap this standing ticket for a London Wembley ticket

I wanna swap these tickets for any night in Manchester except the 12th of June.

If possible I would like to swap these 2 tickets for 2 standing tickets for the 27th or 29th May Thanx

I want to swap these tickets for 4 standing Take That tickets for The Stadium of Lightfor the same show but the following day. (ie Saturday 28 May)