Withdrawal status Canelled means that withdrawal hasn't been confirmed by email. How to resend email confirmation manually is described in this instruction.
Withdrawal status Rejected means the payment to your card was rejected by processing.
The reason may be a limit on the number of payments per card or limit on the amount.
You should try using another card to withdraw.
If you have Privat24 app - create a virtual Internet card MasterCard and try to withdraw to it.
For specifying, why cryptocurrency transaction has been rejected, contact us at email@example.com