It’s not a new thing, has been around for a couple of years I think. Sadly without much take-up so far. I mentioned it back in November 2017, but their website (which as you can see used to be on its own domain, as it predated Mastercard’s purchase of Vocalink) has been around for longer.
Would be great to hear from Rika, but she touched on it recently in one of the excellent Q&As that @simonb runs (tap the to see the quote being responded to):