[.:4:.]

I've been the claimer in a similar incident but I was 3/4 up on the tray back that can opened me when the other driver didn't indicate. I was deemed right of way. Because you and the other vehicle were moving and it wasn't a rear ender it may be a bit of an argument even if the other driver sped up to close the gap you were merging into. It's up to the insurance companies to argue it out to place blame I guess. My experience is insurance companies don't make direct contact only solicitors letters. I've never been at fault but it's still unsettling