844-279-4732

Report them:

http://www.consumer.ftc.gov/articles/0149-debt-collection

Also contact your local attorney general

If they continue to bother you, and you know you do not owe any money,  tell them that you know this is  a debt scam and that you are making a complaint to the police for extortion.  You might have to yell at the scammer and talk over him or her.  Once you get a copy of the police report and they call you again , just read out the  file number and the name of the PD or Sheriff’s office involved.   Tell them you’ll be glad to send a copy to them at whatever address the jack***es are working out of now.

STARK RECOVERY AKA STARK CONSULTING AKA ASTON ASSET MANAGEMENT
Posted In:  https://800notes.com/Phone.aspx/1-866-292-7207
https://800notes.com/Phone.aspx/1-844-279-4732
https://800notes.com/Phone.aspx/1-844-514-5278
https://800notes.com/Phone.aspx/1-844-618-6194
Web page:  http://www.ashtonasset.com/companies/
http://www.ashtonasset.com/contact/
No BBB page for Stark Consulting or Ashton.
Note that that address contains a law practice.
http://www.bcmrlaw.com/contact/
Where one of the partners in this law practice is also the secretary of Ashton:
________________________________________
Entity Name    ASHTON ASSET MANAGEMENT, INC.     File Number    68971152
Status    ACTIVE
Entity Type    CORPORATION     Type of Corp    DOMESTIC BCA
Incorporation Date (Domestic)    04/03/2013     State    ILLINOIS
Agent Name    IAN L ERDOS     Agent Change Date    04/03/2013
Agent Street Address    500 QUAIL RIDGE DRIVE     President Name & Address    HIRSH MOHINDRA 500 QUAIL RIDGE DR WESTMONT IL 60559
Agent City    WESTMONT     Secretary Name & Address    HIRSH MOHINDRA 500 QUAIL RIDGE DR WESTMONT IL 60559
Agent Zip    60559     Duration Date    PERPETUAL
Annual Report Filing Date    05/27/2015     For Year    2015

Federal law (FDCPA) requires them to send you a letter (US MAIL ONLY) within 5 days of their first contact that contains their name, physical address, the creditor’s name, and the amount of the alleged debt.  It also must contains “mini-Miranda” telling you that it is an attempt to collect a debt and that all information will be used for those purposes.  The one other important thing that this letter must also have in it is that you have a right to dispute the debt within 30 days of receipt of the letter and if you do so, all collection activity must be stopped until the debt is verified.
Read up on your rights here, get template letters to send and also make a complaint at this government site:  http://www.consumerfinance.gov/

Also file a complaint with your State Attorney General's office.
List of State AG’s offices:  http://consumerfraudreporting.org/stateattorneygenerallist.php