Life in the UK certificate

Hello - hoping someone can help please.

My wife passed her life in the uk test in January 2020. Just looking at the correspondence that we have it appears we have not been given a pass certificate confirming she has passed the test.

We have an email with a unique reference number for her test and this email includes the link to log into her life in the uk account to 'view her results'.

Does anyone known if we need a pass certificate for the ILR application or is the unique reference number of her test sufficient?

Thanks in advance.

They don't issue a letter anymore. The form asks for the details per the email you have.