DH and I have a 9 month old DD. We chose the name Lottie for her, but wanted her to have a formal name so her BC is Charlotte. We always intended to call her Lottie and never call her Charlotte. When she is bigger she may choose to go by Charlotte/Charlie but for now she is definitely Lottie.
In laws hate the name Lottie and always have. They say it sounds like a Victorian servant and is ridiculous and refuse to use it. I find this rude, DH doesn't. In laws do a lot to help us out and are kind people at heart but there is a lot of history between us. Won't go in to what but it's important for the sake of this thread as a small issue ('please call her Lottie') could descend in to absolute chaos quite quickly.
DD is at the age where she should be learning her name, and so I've asked DH to ask in-laws to call her Lottie whilst she is learning it, so as not to confuse her, particularly when they have her for an hour or two without us. DH said he would but they've just come to take her out and repeatedly called her Charlotte and DH said absolutely nothing. I've asked him why now that they've left and he said it's going to cause a huge issue and he doesn't want to get involved. AIBU to want her called by the name we use at the moment?
Just to add, I have no issue with them using Charlotte when she's bigger, but right now she is learning her name and I want to avoid confusion.