Help please ! VS reward seats on Delta metal

So I want to book 2 Delta One/first class vS reward seats on the LGW-DTW-MCO route.
When I search on the VS website for LHR-MCO for the date I want (14th Dec) there is no availability as a through ticket. However if I search LHR-DTW and the DTW-MCO there is availability as 2 separate sectors.
I’ve spoken to VS customer service and VS flying club and they say they can see the flights but can’t book both sectors on a single ticket as the way Delta have given them/loaded them in the system doesn’t allow it. I know that this is a valid route and the specific flights I want can be booked on a single ticket as my son is on those exact flights on 25th December.
I don’t want to book them on 2 separate tickets as I want to go through DTW as a transit passenger and just do immigration and customs without having to check in for the 2nd flight.
Does anyone have any ideas or contact numbers of anyone inDelta I can speak to to see if something can be changed, or ideas of how Virgin could book this so I can get it as a through flight.
TIA
When I search on the VS website for LHR-MCO for the date I want (14th Dec) there is no availability as a through ticket. However if I search LHR-DTW and the DTW-MCO there is availability as 2 separate sectors.
I’ve spoken to VS customer service and VS flying club and they say they can see the flights but can’t book both sectors on a single ticket as the way Delta have given them/loaded them in the system doesn’t allow it. I know that this is a valid route and the specific flights I want can be booked on a single ticket as my son is on those exact flights on 25th December.
I don’t want to book them on 2 separate tickets as I want to go through DTW as a transit passenger and just do immigration and customs without having to check in for the 2nd flight.
Does anyone have any ideas or contact numbers of anyone inDelta I can speak to to see if something can be changed, or ideas of how Virgin could book this so I can get it as a through flight.
TIA
