public key denied when using numbers as name

I was using 469 as my lp-id... but when i tried to import branches using bazaar.... lp just refused to let me...

santiago@orchid:/var/proyectos/Proyectos/Ubuntu/planet$ bzr checkout bzr+ssh://<email address hidden>/~planet-ubuntu/config/main planet-ubuntu
Permission denied (publickey).
bzr: ERROR: Connection closed: please check connectivity and permissions (and try -Dhpss if further diagnosis is required)

this didnt worked but when changed to santiago-ve:

bzr checkout bzr+ssh://<email address hidden>/~planet-ubuntu/config/main planet-ubuntu
Enter passphrase for key '/home/santiago/.ssh/id_rsa':
santiago@orchid:/var/proyectos/Proyectos/exaile$ ls
0.69 planet-ubuntu