NO BACK UP SERVICE FROM POCKET POS

i emailed Xoliswa Key (Pocket Pos Administrator) today and asked for assistance to set up my pocketpos and she says i must call them. I asked her for their email address and she says they do not have an email address. In this day in age, a banking department does not have an email address? She could have just asked some one to contact me. I will be closing my account shortly and demand a full refund for purchasing a Pocket Pos that i cannot use.