Trouble with the job centre is you will get a load of time wasters or better known as job hiders. To get their allowances they have to be seen to be actively seeking employment so they will sit in the job centre and call around. You offer them an interview but they never turn up. Or if they do turn up for the interview they fail to turn up on their first day.
Then there are those who can't even read the advert. We have put on the forms 'over 25' and 'must have clean driving license'. We get calls from 19 year olds and those who have never even taken a driving lesson

Then are those who think you can speak any of 6 foreign languages because they can't speak a single word of English.
Sorry but wrote the book on this.