I wanted help to set up my thunderbird email program and was given a hotline...

I wanted help to set up my thunderbird email program and was given a hotline *—***—***—****. I was told that my computer was infected and must first be cleaned up. I agreed and followed the instructions to access my computer. All went well and was working well.* days later I was contacted again and Someone called Chris that they made a couple of mistakes, in cleaning up the computer and apologized. I was also offered that I will not be sent a bill and the corrections would be free of charge. I allowed againaccess to my computer. *Since that time my computer seems to worse infected, cannot access my computer and certain programs are suddenly very very slow and it seems that with the SECOND DOWNLOAD need help from Thunderbird to get my computer. Otherwise I have no intentions to pay this invoice of $***..**. the Company which invoiced me on behalf of Thunderbird is called ASTRUM LLC. INFOTECH,also www. **PLEASE COACT ME BY PHONE, TAKE AGAIN OVER MY COMPUTER AND CORRECT THIS ISSUE. MY PHONE NUMBERS ARE *—***—***—****, cell *—***—***—****, bus. ***,***—*****I thank you in advance.....*Wolf leuthner