Today i and my son the first one has registered na...

Today i and my son the first one has registered name to visit my Mother after her operation, and my son havent go in yet bcause counter staff said there are 2 person already so he waited me to tap out,but when i already tap out my son said he want to tap in cannot go in got problem , went to counter, she counter staff said my son name has been removed as visitor! we have been registered since 12pm and at 3pm she said another name had been added and the new name is just came and can permit to enter , and the this particular name came at noon and a few minutes had tap out and gone home and the first person havnt even get to go in been blocked to enter because his name been removed and trying to appeal bcause my son havent get to see his grandmother who had an operation on that day, but counter dont wish to listen repeating to say come tmorrow very poor service and system