Only 1 free MGMAT Cat?

Hi,

I recently bought all MGMAT guides because as I understood in the forum I thought that this will grant me access to 6 free CATs as well.

Now that I ve registered, I encountered that I can only use 1 free CAT and have to purchase the others for 50 $ ?! Did I make a mistake somewhere?

BG and sry if this is a stupid question!