When you send money to someone who isn't a Varo customer, the payment shows as Pending in your Transaction history until the recipient claims the money, or it expires after 14 calendar days. A payment can be canceled during this Pending period. Go to Move Money > Transaction history > Varo to Anyone history > choose the transaction and click Cancel transaction.
Before you complete a transaction, you can tap Cancel if the recipient information or the amount of the payment needs to be changed.