Change of location

I recently just accepted an offer as compliance caseworker with hmrc, but now I will be relocating from my chosen location due to family. Does anyone know if I can change my preferred location, I chose Leeds as my preferred location but I will like to be in Birmingham or London as this is the closest location to me now. How can I go about this, any idea. I have also completed my pre employment check.

I have emailed the compliance team but i keep getting structured replies. Do you think I will be able to change my location please?