Ask once.
In one merchant sign-up we reviewed, verifying identity took more than five attempts. The next step asked for banking details the provider already held, then for three months of bank statements.
Every repeated question tells the customer the same thing: we don’t know you, even though we just checked. Customer journey mapping for a business bank found the same pattern internally: duplicated information across forms, and incomplete documents bouncing between sales and credit.
If you’ve verified it, don’t ask for it again.
