I just spoke to someone who picked up a kitten and was unable to keep it. He said that it was in danger so he picked it up but it needed bottle feeding. He was trying to do so, but he has a new baby himself and he couldn't cope.
He sent the cat to a rehoming agency that charged him $180 to bottlefeed and then to adopt the kitten out.
I just spoke with him. I told him to just check with the agency where the cat is going to go, and what is going to happen to it. It seems a very small sum to take for a kitten which may take months to rehome and which will require run the clock feeding in the meantime.
It does not mean that this agency is necessarily bad - they may be entirely above board. However, if you are aware of any such agencies, please check with them where the kitten is going to go and for updates on the kitten or cat. Any rehoming place should allow you access and information so that you at least know where your kitten or cat is going to end up.
There have been horror stories in the past about people handing over money and the kittens or cats never being heard of again. One caregiver told me that she was told to hand over the money but she was not supposed to ask where the cat went, nor have any contact with the cat once she handed over the cat and the money.