Default [Q] Exchange push sync when roaming issue

Hi Guys,

I have searched around for any word on this problem but cannot find anything about it so I'm turning to the experts, LG's so called support certainly don't seem to be able to help me.

I got a new LG G2 on EE in the UK last week and have just arrived in Australia for a week of business, my Exchange account is all set up on the phone and working seamlessly in the UK however now I'm roaming it keeps reseting itself from 'push' to 'manual' and, when it has done so, the relevant box in e-mail settings is then grayed out and I cannot change it back again. I have to reboot the phone at which point it goes back to 'push' again, for a while anyway. My data while roaming, sync and data settings are all on.

Any thoughts?