Hello good people. Inadvertently I had entered my travel dates as 1st oct to the UK in my UK visa application form for 5 years multiple entry visit visa and now when I have received the visa its valid from 30th sept. But I need to travel to visa on 1st Sept. Is it possible if I reapply for 6 month Priority UK visa and get a new visa issued from 1st sept? Will my old visa also be counted as valid if the new one is issued? Please guide.