Hello,
Any help appreciated, we are about to apply for ILR via the 5 year route for my husband. I am very confident we meet all the requirements. However, since our last application 2.5 years ago, the proof of English language requirements has changed

We have used for the last 5 years a TOEFL certificate with way above the requested level of Proof (C1 I think). He also has a masters in English but from a German university. It is now requesting we spend another £180 to get this validated via NARIC. My argument is we have used this for the past 5 years with no issue, why do I need to do this now? If we just send the TOEFL certificate we've used for the last 2 applications along with the Masters certificate, can they refuse us?
Thank you!