few logics inc was told that i was hacked from china @ russia i have 3 security programs i think they infected my computer everett Massachusetts

i recevied a call that said  my computer was infected from some one in china @ russia.they showed my a list of ip addresses they said infected me . they said i have to buy another security system ,i said i already have 3 systems at big cost and that they are for lifetime coverage .  they did not answer my question just keeped on asking for more money. they wanted 500.00 add'l for another plan for lifetime coverage i told them no way they then reduced it to 300,00.  sounds like a good deal but i already pain them over 1000.00 to total and lifetime security coverage. he said think about it and he will call me back tomorrow, he never called again.  i think they put the infection on my computer, why else would they lower there price and also not give me a copy of the ip addresses they said infectrd me