have fallen for scams after having called what i believed was an MSN phone number iyogi 1 866 914 9049 please scam or real ?msn.com

I go to MSN.com phone contact called 3 of the first site numbers. India agent Chen(spelling) and iYogi extremely   authentic bought it  notifird MSN NO RESPONSE SAME THING THIS TIME.  THEY TOOK CONTROL OF MY COMPUTER AND PHONE .WHAT  MUST I DO TO GET BACK TO NORMAL TRIED RECOVERY DELETING iYogi still get every  time I log in LET  iYogi  into your computer to make changes always say NO 79 yrs. old Please some enlightenment before DYING....THJANKUONE AND ALL TINY TIM