What's your limit on paying for second hand tunes?

[king aaron]

My company has for the at least the last 4 years underpaid the staff because it was using an incorrect formula. This amounts to about £20 per day and I wonder just how far back it is possible to claim

[DannyBlack]

My company has for the at least the last 4 years underpaid the staff because it was using an incorrect formula. This amounts to about £20 per day and I wonder just how far back it is possible to claim

as far back as you have been underpaid. you worked for that money, you are entitled to that money.