POSSIBLE REASON: in case you would like to make a deposit via cryptocurrency to your crypto account.
RESOLUTION STEPS:
1) Log in to your Deriv crypto account and click on cashier.
2) Select deposit and copy your crypto wallet address or you can scan the QR code given.
3) Paste your crypto wallet address into your own crypto wallet provider and choose the correct network.
4) You will then see the transaction as pending. Your funds will be available in your crypto account as soon as confirmed.
5) You can view the successful deposit in your Deriv account statement.
Disclaimer: The processing time for the crypto deposits depends on the blockchain and the number of confirmations, which vary based on specific cryptocurrency.
For further check refer to
https://community.deriv.com/t/deposit-guideline-for-cryptocurrency-to-crypto-account/33708