While there is no option on the Dashboard to cancel the requested payout, you could contact Honeygain Support by submitting a support request using this link here and asking your payout to be canceled.
Please note that it is not possible to cancel JumpToken payouts, as they are processed completely automatically and instantly.
As for the PayPal payout, we cannot guarantee that we will be able to cancel it because it is impossible to cancel the payment once Tipalti starts processing it. If you have requested the payout but have yet to sign up for the Tipalti account, the chances that we will be able to cancel your payout are much higher.