HELP

i was messing about with my phone a couple of hours ago and somehow i've changed all the helpline comments into dutch, i'm on vodafone nl izi tarrif i have around €20,03 credit but i can no longer make a call, check my balance, add credit or anything else, i've tried the vodafone uk helpline (they couldnt help), i dont even know my izi phone number (i know its starts 06 but thats it )

can anyone find out the numbers i need to dial to change my automated services back into english, i've tried dialing out using +44xxxxxxxxxx to a uk number an +31 to a dutch number, i've tried *100*xxxxxxxxxxxxxx#, i've tried the izi helpline on 555 (doesnt seem to work anymore) and the uk creditline 2345 but all to no avail i'm afraid, i cant even email the vodafone.nl customer services as i cant fill in the helpline form

Thanks

ABCMan