Apologising to customers by letter simply isn't good enough. LH saves a ton of expenses by not providing services to the amount they promise (what's with lounges still not being staffed, looking at MUC T2, etc.) - so they should do the proper thing and at least stop charging egregious amounts particularly on their domestic flights. As demonstrated above, the opposite is true.
After all, a rebound in travel should hardly come as a surprise. LH management apparently used tax payers' money during the pandemic to pay severance amounts to staff they let go and now that demand is back they cannot re-hire people.
And what's more try booking flights as the owner of one of the M&M Discount passes: these no longer seem to apply to any flight - but turn out to be limited to certain connections, some of them not even non-stop for domestic legs. This is not what was advertised - and simply scandalous behaviour by LH.
At the same time, all management board members increased their base salaries in 2021 by a combined EUR 0.5mn or EUR 86k/board member except for the CEO who got paid EUR 163k more in base salary. The supervisory board buddies signing this off should be as much ashamed as management.