If you only top up from a regular bank account linked to your BVN, the answer is no.
Advanced KYC is required if you top up from a fintech, microfinance, or non-traditional account, even if it is linked to your BVN. Cardtonic flags these automatically, and Advanced KYC resolves it permanently.
It is a one-time process that takes just a few minutes. You will need one valid ID and a recent proof of address.
