I wish it were/hope it IS that simple. This is going to take us a little off topic, but here goes. I bought the car in Nov 2nd hand, 18 months old (registered May 2019), from a Citroen main dealer, Evans Halshaw. Maybe they had it as a trade in? In any event, there is no proof that the first year service was done, at the correct time. Evans Halshaw did a "service", in November, but that was 6 months late AND they used the wrong grade of oil - 0W30 i/o 5W30. My local main Mitsu dealer tell me that these two facts MIGHT invalidate a warranty claim. It would depend what the claim was for. If it was clear that the "fault" was clearly unrelated to the erroneous servicing, then they might uphold my claim. I see the logic of that. If the back wheel falls off, you can't blame the engine oil. However, this same main dealer has checked the records and can see that the beepers were not factory fitted.
So, I have beepers that drive me nuts. I have a 2nd hand car dealer who is refusing to provide me with a warranty, to replace the one that they f*#ked up - and the service record book is missing. It's a good job I love the car. This would be an awful mess otherwise!!