I was worked in UAE on a long term visit visa.my profession in visa as an Artist sponsord by a hotel.visa issued on 13 feb 2012 validty till 12april 2012.but after I enerd UAE sponsor change its validity to 20 may 2012.but I exit from uae 01may 2012.its 20 days before.now I have doubt that can they block me to enter UAE from another visa by another company? Can I go on there visa only?