Answer: Tiers are steps in the verification process and the buy and sell limits are mentioned in the table below.
The verification process is divided into steps. Each Tier, more information will be asked about you. When you reach a higher Tier, your buy limit will rise. The buy limits are in line with the anti-money laundering legislation. Here you can see the buy limit for each Tier.
|Unverified||Tier 1 = Telephone||Tier 2 = Address details||Tier 3 = Passport|