I got them directly from DPA USA in Colorado.
DPA Microphones, Inc., 2432 North Main Street, Suite 200,
Longmont CO 80501, USA
TEL: +1 303 485 1025
My 4022's were in for a check up and I asked the tech if he could send me a set of cables (DAO6005) along with my mics. This was a couple of months ago, maybe there was a price increase due to currency exchange rates?
Edit to add: I just found the invoice, I paid $35 for each cable.