2015 Mini Cooper won't accept petrol in the tank - help!

[volvos60s60]

Hi

My 2015 F56 Mini Cooper won't accept petrol easily without the pump repeatedly clicking off, even though it's only got less than half a tank of petrol. Rotating the nozzle in the filler neck or pulling it back slightly makes no difference, I just see a small pool of fuel gather on the outside of the fill hole which eventtually drains back down. There are no dashbooard warning lights

In the US I believe there was a service bulletin from Mini instructing a new tank to be fitted. I don't kow if there was a UK recall for this or not, otherwise it's quite an expensive job, it's it's even certain that it's the culprit.

I was wondering if it might alternatively be a fuel tank breather valve?

Or maybe someone has experience of this or can suggest the most likely reason

Any help wil be most appreciated

Edited by volvos60s60 on Saturday 17th February 21:25

[volvos60s60]

Thanks for the advice so far. I have had some success with rotating the nozzle 90 degrees clockwise from the normal position, & only squeezing the nozzle 1/3 open. At least I could fill it up. I have ordered a new fuel breather vent valve, only £20 & 10 minutes to fit, but I don't really think it will help the situation as that valve is in the engine bay & not close to the tank. I really do suspect an air lock in the vent pipe is the issue