I think joining at 70 may be pushing it anyway but i guess people just expect/want more than they need these
days... Maybe gain another couple of levels and go for it again? do you let them know your a boxer or just say nothing?
If your not failing, messing up then i spose theres not much you can do other than quest and try again :P
The higher you go the easier it will be until you hit 80 with no eppixx and the fun starts again : / but thats just life