Seat Selection

I am trying to select seat for my return flight but having a slight problem. I have access to the seat map as I'm T-75 days and I am able to select the seat. It is confirmed that I have selected those seats. However, when I go back in to the seat map, my seat selection is blank and the seats I had selected are available again. I've already missed out on 12a & k because of this.

Any suggestions?

[mitchja]

This is a known issue (which VS really don't seem to be fixing either) where you have Little Red flights as part of your booking.

You are only able to select your seats once. The system will remember your original seat number but wont let you change it.

Thanks James!