I've been a member of Mindfield since Sept 2018 and have NEVER qualified for a survey. Not one.
I think I cashed out once or maybe twice with them. I do not do them anymore. I actually think they closed my account because I had not been on there in eons. I was updating my address book and logging in to accounts and it said I did not have one.
A lot of the different sites like that have closed and I was not aware that they had until I tried to log in.
You can most likely look for a lot more sites like this to shut down. You have the same offers on all the sites. Sites are merging together. And I can honestly see the "free money" people get on sites like this ending. I can see it changing so that to be a member and earn money you have to fill out the I9 to start with.