Tevez insists the United boss never talked to him about his future at Old Trafford.
The Argentine snubbed a contract with United and has agreed a five-year deal with rivals City instead.
Tevez said: “I was there for two years and Sir Alex never called or sent any text messages in that time.
“The only time he talked to me was after a match against Roma to discuss a situation about going to play for Argentina.
“It doesn’t seem that this is the way to treat a player in two years at the club.
“It doesn’t seem there is a line of communication.”
