The Danish banks are charging storage fees on Krone deposits, as well.
It is SO easy -- so entirely simple -- for retail savers/investors to make a profit from this nonsense that I shall not relate it here. Simply discard...throw utterly away...what you "know" about finance and think about matters with an open mind for, oh, 10 minutes or so.
Don't condemn these a&&hole bankers for their silly-ass negative "interest" rates, mate. Line your pockets, instead. C'mon, do not play their game. They cannot stop you from playing a game that profits from their idiocy. Sheesh.