Currently, the KnowRoaming SIM Sticker and the payment functionality of your SureTap NFC SIM will not work together.
However, there is nothing about the SIM sticker that will affect other NFC communications either between the NFC enabled SIM and other devices or between the NFC enabled phone and other devices.
That being said, there are other related technologies that the SureTap NFC SIM requires that our Sticker is currently overriding. This is what makes it incompatible.