This is another phone number used by Commonweath Financial Systems, a collection agency. This collection agency adds and changes phone numbers on a regular basis in order to harass consumers.

(1) Notify them in writing to not contact you again.

(2) They will likely ignore you and will continue to contact you.

(3) File a complaint with the Consumer Financial Protection Bureau:
https://consumerfinance.gov/

(4) File a lawsuit again Commonwealth Financial Systems for violation of the FDCPA. Statutory damages are $1,000 and other damages might be available to you. NOLO has more info here: http://www.nolo.com/legal-encyclopedia/damages-fdcpa-violations.html

Here is the contact information for this collection agency which consistently violates the law:

Commonwealth Financial Systems (http://www.necredit.com)
Address: 120 N Keyser Ave, Scranton, PA 18504
Phone:(570) 347-1115