To upgrade your account with an active membership, follow these steps:

1. Navigate to the Upgrade tab in the main menu.
2. Select your preferred cryptocurrency for payment from the dropdown menu.
3. Choose your desired membership level by clicking the blue button next to it.
4. Deposit the exact amount specified on your invoice. Any excess funds will be credited to your wallet once the upgrade is complete.

Note: Membership fees cannot be paid using existing funds, including transfers received from other members.