The issue could be due to withdrawal limits, security holds, or pending verifications. For immediate support, dial the Coinbase support number-1-888-842-1385. Their Helpline Number is available around the clock to resolve your concerns effectively. Ensure your account is compliant with Coinbase policies, including ensuring your account balance suffices after fees. Reach Coinbase's Customer Service Number to get tailored help in troubleshooting this or any other issues preventing transactions.