ESA banking letter

My partner is in receipt of ESA support and received a letter today from jobcentreplus regarding banking. She was last reassessed in 2017 and has not had a form since.
'Your Claim for Employment and Support allowance
Bank/building society name
We also hold an account number/sort code but for secrurity reasons they have not been included in this letter.
We will pay your allowance into the above account from July 2023.
Then a load of details about if you change banks you must tell us etc...'
This seems like such an odd letter to receive and I wondered if anyone else got one?
Thank you

Thank you very much, Graham. The letter does not state any amounts but her next payment is due next week so I will update when I know if she gets the same.
Many thanks for your reply.

Hello again Graham, Just to let you know payment was received as normal so I will file the letter. Thank you again.

Sorry Gordon! I do not know why I 'saw' Graham!

Several years ago when I was speaking to someone at the DWP about an "out-of-the-blue weird" letter, I asked why it happened. She told me if a DWP employee opens a claimant's record either deliberately or mistakenly, it will generate a letter unless they click on a particular box in the record. So if it was a mistake and they are rushed or busy or just forget, a letter gets sent out. I dread to think how much these mistakes cost over the course of a year.