you don't see them on the TWID Pay website ? Have you contacted them on this issue ?Even now I can see Intermiles available (615 on 20000), but after choosing Intermiles I have not received any Intermiles after 5th May.
Now it is certain that they are not able to give any intermiles, there is a problem.
So I think now pay with rewards doesn't make sense at all. There is no way to recover 2.5% charges
Better to choose the low priority option and pay 1.18% charges only