In the last 5/6 years when my DB and SIL send DH a Birthday card or us a Christmas/Anniversary card, they have spelt his name wrong ( his ends in 2 Ns,they only put 1).
I have told them a number of times and their reply his that one of their friends spells theirs with only one N. We don't live close so only see about once a year but and it's a big but they have know DH for over 40 years.
DH has now sent a birthday card to SIL (1/9/2018) with his name highlighted with bright yellow marker pen yet it is our wedding anniversary today and the card has come with his name spelt wrong. DH hasn't seen this card yet. I think I'll bin it as I don't want anything spoiling our day.
DB is my older brother and I don't want to fall out with him. But I feel as though they are disrespectful to DH.