Yes, you can cancel your Deposit Certificate any time!

However, if you choose to cancel your certificate before the 3-month cycle ends, an Early Cancellation Fee will apply, and $1.00 will be deducted from your certificate amount when refunded back to your wallet.

Also, if the canceled certificate was your first Deposit Certificate issued, the 5% bonus you got will also be deducted from the cancelled certificate amount on refund.