It's a simple top-up card, not connected to a bank account. I wrote "online bank" to simplify. What they offer is an online dashboard, a screenshot of which Amazon refused.
In any case, I didn't ask them to take me on my word, but to contact me and see if a different set of documents might be used instead.
I run an online store, we use Stripe for payment. 100% of prepaid cards issued outside of the UK (we are UK based) are declined, fortunately we have very very few of them. I have no idea if this is stripe or the issuing bank but I believe prepaid card and overseas transactions is MAJOR indicator of fraud.
Just because it isn't connected to a bank account as you understand bank accounts to be, doesn't mean it isn't connected to a bank account as banks understand them to be, and you're not entitled to request a statement.
Just because one is entitled to a bank statement as you understand this entitlement to exist, does not mean that the card issuer is obliged or interested in providing one within weeks or even months of the request, especially with the exact format that Amazon or another third party has decided to accept.
Ah I see, so you did realize that the bank responsible for your card would send you a statement, but they wouldn't send it in either the correct format, or within the necessary timeframe. Well that just sounds like a crappy situation all-around.
In any case, I didn't ask them to take me on my word, but to contact me and see if a different set of documents might be used instead.