Ok, did it again today on a different itin, and this time only the last 4 is showing.

The difference between today's itin and last week's (where the full number showed) is that today's was paid wholly on a CC, whereas last week's was paid partly with Travel Bank Funds and the add-collect was put on a CC.

So maybe this only applies to add-collects, or Travel Bank + add collects.

Either way, it's something CO needs to correct.