can anyone help with sonos one and alexa issue please

hi there, got the sonos one a few weeks ago and as much as i love it, today it has all of a sudden decided 'sorry i'm having trouble understanding right now, please try a little later' and has changed to the american voice, when i had it set up to the english voice. Tried disabling the skills, deleted the app, nothing thats worked in the past with minute problems seems to be working this time. What else is there to try?