Worst service experience

I requested a change of banking details from standard bank to FNB account. I was asked to provide certified proof of address. Because i receive my statements on email i tried to explain that the police, post office all refused to certify a copy printed off email or downloaded from my utility service provider portal but they still insisted on the certified copy. Where the heavens should i get the certified copy from? Should i miss my installment all because of a certified copy of address? The address on the FNB account I am changing to corresponds with the address on the utility bill. Why didnt you insist on a certified proof of address when i app**** for this HP then? You are humans for heavens sake and not robots that are programmed to provide one response. Provide solutions to custom needs and not insist on stuff that isn't there.