re: Prolific pay options
Just received my first payment via Circle for Prolific. I withdrew after the £5 threshold occurred (about £6 total). The fees from Prolific are half what Prolific charges for Paypal withdrawals.
Circle texted me, to let me know Prolific deposited, as soon as it happened. Once I logged into Circle and transferred to bank account, it was instant transfer to the bank account.
Circle pays from Prolific, will only be drawn on Tues/Friday though, unlike the new Prolific/Paypal instant out. After Prolific draws and deposits, it's instant FREE transfer out of Circle, to a debit card.
FYI ~
[If you can wait til £20 accrued, which I usually can't! hehehe - Prolific charges zero in transfer fees on Circle]