877-820-2969

It looks like the phone number 877-820-2969 has been associated with scam fraud activities. Here are some important points to consider:

Report Fraud: You can report scams and fraudulent activities at the Federal Trade Commission's website, which is dedicated to helping consumers report such issues.
Spoofing Alerts: There have been reports of telephone spoofing scams using various numbers, including those from government agencies. If you receive suspicious calls, it's best to be cautious.
Victim Support: If you believe you have been a victim of a scam, you can contact the DHS OIG hotline at (800) 323-8603 for assistance.
Scam Reporting Tools: Utilize tools available through government resources to identify scams and find the appropriate agency to report them.

My computer got stuck on a page, with multiple pages and I couldn't do anything with it and a it was saying I had to call a Microsoft Technician at that number.
I called it and was connected with Alex Costa. His direct number is 573-279-4570. His Employee ID# is MS4979.
He helped me get my computer going again but had to download an Ultraviewer App and do some other computer related tasks.
I asked if he had access to my computer and he said no. I had to leave for work and couldn't finish the process but it appeared to me, that someone had control of my computer. He instructed me to leave the computer on.
When I got back to my computer a couple hours later, someone was controlling my computer and trying to access my credit card app. When I got clse to my computer, whoever was controlling it, stopped, so I assume he/she could see me through my camera.
I immediately uninstalled the Ultraviewer app.

Be sure you let your CC company, Bank, etc. know about this potential breech.   Change all your passwords, immediately.  This is well known scam.  Never call or click links from so-called technical support unless YOU initiated contact to a published verified number or site.  Here's information from Scambusters on what to do if you've fallen for a tech support scam.  Read it.
https://scambusters.org/techsupport.html

In addition, this is the FTC page on identifying and reporting this type of scam.  Unfortunately, the site may not be available at this time due to the government shut down.
https://consumer.ftc.gov/articles/how-spot-av ... h-support-scams