For what this may be worth, OAT recommended a group of 14 long-course students to 2 airlines, at very short notice, just as 6 of us were successfully finishing the BCPL to CPL/IR Upgrade course. We didn't get a look-in, and I was personally advised that my age would always count against me. This was said after I had paid most of my money.
Back in the 90's, I know, but I have heard of similar cases recently.
Buyer beware!