I got Suffolk, which is very incorrect. But then I've lived in Scotland (the posh bit that people can understand) and the US (NE and the South), followed by a stint in Yorkshire and for last two decades, London.
I have a weird accent that, I suspect, in part reflects I have a bit of speech defect and a general career in making myself understood to foreigners. It's not Erewashian or RP. It's just odd. Most Americans could be persuaded I was South African (but I'm pretty sure that not one of them couldn't describe or place a South African accent). To my parents, it's posh though.