For over a month I have been unable to obtain client authorisation using the HMRC facility. This has now happened for three separate individuals. HMRC are being very unhelpful and constantly requesting more screenshots of the data I am entering (which is not changing!) They are then insisting that the information must be incorrect and saying that the clients must phone HMRC to confirm their details. I have official letters from HMRC with the UTR numbers and postcodes for each of them and I am assuming that three clients won't all be getting their NI numbers wrong!