Who called from 7706277727

If its a collection agency I don't know why they would be calling me, and I would like it to stop. They call almost every day while I'm at work and I would like it to stop because its getting me in trouble. Like I said there is no reason to call me if its a collection agency and I would like it to stop. Thank you.

Called my phone.  I ignored it and did not answer, because I did not recognize the number.  No message left.  

Received a call from these guys on my cell phone.  They were selling extended warranty's for my car.  No thanks.

Advised this caller not to call me anymore

Did not recognize the number, so let it go to voice mail.  No message left.  Thank you for the comments here.  Now that I know it is telenuisance I will place this number on my reject list, never to be heard from again.