Phone/Fax:

. . . .....:Tel: 773-762-4330:.

. . . .....:Fax: 773-762-4333:.

E-mail:

. . . .....: [email protected] :.

Postal Mail:

. . . . .. ..:Challenge-Foundation:.
. . . . .. ..:3138 W. Cermak Road:.
. . . ..:Chicago, Illinois 60623, USA:.