Yes. As long as the funding has not been completed, you can withdraw your application at any time. Simply write to the support team or use the mailbox in your account.
Once the contracts have been drawn up, you can still withdraw from the contract: within 14 days after you have received your copy of the contract for loans under the Consumer Credit Act (CCA), within 14 days from receipt of the signed contract for other loans. After that, and at the latest after the payout, you can no longer withdraw. However, you can repay the loan early at any time, see Can I repay my loan early?