The answer
Many exchanges use cooldowns or whitelists to limit account-takeover losses. The exact period is platform-specific.
What to do next
Check the whitelist status; changing settings repeatedly may restart a hold.
Coinbase crypto exchange
Exchange brand/tool is relevant to source material; affiliate eligibility subject to approval. Availability, supported assets and local eligibility must be checked before signing up or buying.
Visit Coinbase crypto exchange ↗Official provider link · Compare suitability and availability before choosing.