Agree 100% there.
Ive had two mortgages/done two mortgage applications. 5 years apart and different houses etc.
Both times the offer was wrong. On the first one the bank had put the wrong house number on it. On the second one, they spelt my wife's name wrong....
The name thing REALLY wound me up. They ask you to supply them with six billion forms of ID and proof of who you are/funds etc etc etc. Yet they still go and spell the name wrong.
The world is hilariously incompetent.
During our one and only house purchase, my solicitor sent me a different customer's entire moving pack by mistake with over 100 pages worth of sensitive documents exposing addresses, financial details etc. I wrote to my solicitor complaining and they transferred my case to the owner at a different office. Service improved greatly after this and they gave me a heavy discount on the fees.
I completely agree with you regarding names and addresses. It's rule 1 of things to get right for a company who's job it is, is to send hundreds of sensitive letters day to day. When they fail on that account, trust levels hit the floor for me.