Despite the holier-than-thou postings by some buffoons here, presumably not long out of university, from many years of experience I would point out that most people in MC (and elsewhere) have lied on their CVs at some time, if not mostly. It became the norm (at the very least to embellish experience) and so if you did not do it also, going with the crowd, you were at a severe and unreal disadvantage in competitive situations. That is the ubiquitous problem with reality in this depraved world! Most of all you will find the guys at the very top have no formal qualifications at all in many cases and few qualifications of any real significance in most of the rest, and even then they are in totally inapproriate disciplines (like an "accountant" with only a first degree in scuba-diving)! I have worked through many, many years, and throughout made claims both in terms of experience and formal qualifications, from time-to-time somewhat embellished, to perhaps understate the position. Over all of these years I was never asked even to produce any of my formal certificates, except on one occasion when I needed a visa and a permit for work abroad. Even then there was no problem and they accepted the situation completely without question. The self-righteous position of some posters hereon is typical in my experience of many of those now recruiting, where they themselves have no significant formal qualifications, or at best only a first degree in a completely unrelated or inappropriate discipline. They are the worst kind at wanting to check potential applicant's formal qualifications to absurd levels of (often invalid) verification, solely because they know that they have embellished their own CVs so greatly to get where they are and because, above all else, they are very conscious of their own real inadequacies. In any case, as mentioned hereon earlier, the IT-based qualification and experience-checking systems are riddled with errors themselves, due to suspect and downright erroneous information being entered into them. They are therefore no firm authority on what qualifications and experience any candidate actually has, and no-one but a fool would use their results as the truth and nothing but the truth! So, if I were you, I would stick to your guns, and if challenged I would state that there is clearly an error in the records, and the particular degree grade is not significant in any case as to whether you could do the job well. Probably your transcript is more important in reality. After all "2.1"/"1" - the only difference is the addition or omission of a two. This is typical of the types of data errors in the records in these systems, due to data input errors. Just stick it out and you will survive, but do not claim a 1st for this application from hereon. If they do start nit-picking about the exact grade of degree I would suggest it is not the type of employer you should work for, since that is indicative of a pathetic ethos and structure in which you would have no future; it would indicate that their eye is not on the ball of reality, if they rejected you only for having a 2.1 instead of 1st despite all of your other attributes!