Just loaded another $1k over at WM using the kiosk.

1 x $500 Chase Visa
3 x $100 Metabank Visa (GCM)
1 x $50 Metabank Visa (GCM)
3 x $50 US Bank MasterCard (Staples promo)

All went through no issues.

Just thought I'd update because I thought I read people stating issues with the MCs