Well, if the ears were going to stand I think they would have done so by now. Maybe you could suggest she tape them for a while longer and if they don't stand, tell her the pup will be replaced. Did she buy the dog as a show or breeding prospect or just pet quality? Maybe you could have the dog altered and rehome it with someone who doesn't mind floppy ears. It just seems to happen even with Shepherds sometimes.Somewhere down the lines there must have been a dog with soft ears.