Originally Posted by
taliesin
Although he refers to "VA," OP has accumulated VS (Virgin Atlantic) points, which do indeed transfer to Hilton at 2:1. I highly doubt that he's been making a bunch of RTs to London on Viasa (IATA code VA), not least since they've been out of business for 15 years.
I thought OP was referring to VX as VA and had accumulated miles domestically, which he now wants to use for Int'l, but your interpretation makes more sense.
But if OP did accumulate on VS, how is he only figuring out after obtaining 500k how to use them?