Hello ... I am coming up to my 30th day on my visa on arrival in the UAE and I am also a UK citizen and passport holder... however!! ... Would I qualify for the 10+/- grace period as I came through Sharjah airport or would this rule apply for ONLY Dubai or is this for ALL the UAE Emirates???Do the visa run on day 38/39 and you will be fine, I had lots of experience and have friends still doing this every month. NEVER been an issue just do not go over 40 days or you will be fined.
Please reply soon I am on my 29th day here