DD is 9 and had the measles and rubella single vaccines at the height of the MMR scare when she was 18 months. I've told the GP surgery countless times that this is what we did.
Now 7 years later I get a phone call asking if DD has had her MMR elsewhere. I explain again that she had the single vaccines, they ask if I have any batch numbers so I find her red book and say that yes the batch numbers are written down. Then they tell me I need to bring the red book in so they can see it themelves. I get the feeling they don't believe me. But I politely told them that I won't be bringing the red book in but I'll happily tell them the batch numbers over the phone. Which they agreed to.
Then the lady (have no idea if she was receptionist or HV) told me I'll have to bring her in for an MMR now as she's due the booster and there is no single mumps vaccine. Like it was the law or something. So I politely told her that I didn't have to at all.
I must admit I'm in 2 minds about letter her have the MMR and maybe if he hasn't had mumps by the time she's 11 I will let her. I don't really want her getting mumps as an adult as its meant to be worse so I'm hoping she catches it herself and then gets a natural immunity.