800-336-8828

Your number 800-336-8828 is from a company called Natare Corp. Go to their website and u will see this number listed.

They mfr. & install pools and is  assoc. with Aquatics Int'l.

Called here, no message. This is a new one. Scam?

Do consider maybe getting a call blocking device or phone.. You can google them and many are around $60.00 or so.

Report your callers here, not just to the DNC alone:

https://www.ftccomplaintassistant.gov/#&panel1-1
https://esupport.fcc.gov/ccmsforms/form1088.action
https://complaints.donotcall.gov/complaint/complaintcheck.aspx?panel=2

By State DNC lists:
https://800notes.com/faq/state-do-not-call

FCC Abandoned Calls Complaint form:
http://www.fcc.gov/cgb/consumerfacts/1088D-R.pdf
email:  fccinfo@fcc.gov

I want them to stop calling they call nonstop at all hours and don't ever leave a message

Stop calling!

Um ...
We did not call you.
You did not read Tamianth's excellent answer, dated 11 Sep 2014