How do I verify my account to Tier 3? ICONOMI - Gregor K. March 12, 2018 15:15 Updated Follow In order to verify your account to Tier 3 custom withdrawal limits (not custom buy/sell limits), contact customer support. Please note that users must be on Tier 2 before they can upgrade to Tier 3. Related articles My Tier 2 verification failed. What do I do now? How long does Tier 2 verification take? How do I verify my account to Tier 2? Verification tiers and deposit/withdrawal limits Adjusting/changing the Crypto Fund structure - Rebalancing Comments 0 comments Article is closed for comments.