<prompt> Human: I work as a carer for a residential home in the UK.Payment wise for the home I work in consist of those with no qualifications getting minimum wage and those that have done there NVQ will get paid around 1.50 more per hour I passed my NVQ, courtesy of my work providing training, however they said I must also do a key skills in Maths in order to pass the NVQ properly.nbsp;After trying and failing many times to pass this key skills I found out that its untrue - I do not have to pass this at all in order to pass the NVQ and that I should have received my certificate for completing the NVQ course a year ago when I first thought I had. That it was my manager telling them not to provide me with it just yet.nbsp; We have since then had a change of management and the new manager managed to get in contact with the college for me to finally get my certificate. I have just received it with the date of a year ago, meaning all this time I should have been getting extra payment like my other colleagues who have passed. nbsp;I asked my new manager about this, and to perhaps backtrack payments I should have received and she said that due to it being a year this cannot be done now. nbsp;I feel this is unjust and not fair - I worked hard to pass my NVQ and I work just as hard as my other colleagues and yet all this time I have been underpaid. Is there anything that I could do to receive a back payment of what I should have received Which considering the hours I put in and the over time would be over 3000 or are they in the right to refuse me?  <response>: Back payment, is by no means, limited to complaints filed within a year. Many cases go back many years ie. class action lawsuits. To suggest they dont owe you that money because its been over a year is to reward themselves for being an excellent liar to you. To me it sounds like theyd rather not go through the hassle of opening up, and amending, last years books. That being said, youre in a difficult situation in that you might not want to piss off an employer that would perhaps regard it easier to dismiss you than to pay the 3000.If your manager isnt willing to pursue this, ask for permission to take it further up the pyramid. You were either lied to or misinformed and are fully deserving of the compensation that is rightfully yours. Good luck! 