The way I read this, Newco has accepted this debt as part of the 5-way agreement but, with the authorities not seeing any sign of the money, they informed Newco (last month, I believe) that they'd withhold payments (prize money and telly?) to cover it.
Seemed plausible at first but the timeline does seem a bit... extended. Maybe they know something about the state of Rangers' finances that we don't.
[Edit to fix grammar before Bennett points it out - couldn't have that.]