hello sir/madamthe call you have received is a well known scam called tech support scam.
if you didn't give them your card number, you are safe.
I will be happy if you rate my service using one of the smiley icons.I will be happy to help you if you may have problems in the future.
Thank you I did not give them my number but they did get into the computor so have they hacked my computor??
probably they will ask you to buy the program. and then they will ask you your credit card number. never give them your credit card.
i recommend you to scan your computer fully with an anti virus/malware program like norton, avg, or mcafee (whichever you have)