Who called from 5137130613

Annoying repeat calls. Upon the 2nd or 3rd ring, it rings twice back-to-back (just like an incoming three way call). CID says "Denorth". No one there when I answered.

Called here yesterday (4/12) and again today (4/13).
Called ID says DENORTH.

Can't find any information about who this might be.

They are allegedly working for Direct Energy. Here's Direct Energy's contact information:
Phone (Toll-free):
Monday to Saturday 7:30a.m. - 8:00 p.m. CT

Residential customers:
Customer Service: 1-888-305-3828
Enrollment: 1-866-364-1778
Prices may vary. Prices on web site are valid for online enrollment only.

Direct Energy Power-To-Go prepaid electricity
Customer Service: 1-877-866-6601
Enrollment: 1-888-353-2784

Commercial customers:
Small Commercial: 1-877-877-3268
MultiFamily apt. owners/property mgmt co.: 1-888-567-8444
Good luck getting anything but the runaround from either DeNorth of Direct Energy. Both are nothing but POND SCUM

Getting 2-3 calls a day from this group.

Was a Direct Energy customer (their rates WERE low in the beginning), sadly.  My 18-month "relationship" time period won't expire soon enough.

called 10 timesin 2 days, no info