Are you required to pay a company back for them overpaying you after you left the company?

ONdigital suffered from the start and even renaming the service ITV Digital on 11 July 2001 could not save it. It went off-air on 1 May 2002 after the consortium collapsed, the reason given being overpaying for the television rights for The Football League. However, the choice of 64QAM broadcast mode, 40%+ of aerials needing replacing, a high churn rate, awful point of sale marketing, no technical support for customers, an easily hackable encryption system, the cost of having to provide set-top boxes for free and aggressive competition from BSkyB brought spiralling costs, not a new "licence to print money" as co-owners Carlton and Granada thought.