ITB interrupts:
1. All ongoing abilities (banding is instant, even though the "band" is ongoing)
2. All SAs actively removing you from battle (the bands #s may do this, but those aren't SAs)
3. The last enhancement played, if played by opponent (so, if the last ehn created the band, it would. If an EC or a previous ehn created it, nope)
Hope that helps.