Just Brakes Just Brakes # 0072 Not getting work authorization. Not honoring "Lifetime Warranty" Mesa AZ

Years  ago  "Just  Brakes"  advertised  a  brake  job  with  "Lifetime  warranty".   Their  offer  did  not  mention  that  only  the  pads  were  covered  under  warranty  and  that  the  customer  would  still  have  to  pay  for  labor.   On  11/18/2015   I  went  back  to  the  shop  because  the  pads  were  worn  out.  The  manager  told  me  that  the  front  rotors  had  to  be  replaced  for  the  cost  of  $ 70  a  piece.   At  Autozone  they  are  about  $ 40,-  a  piece.   He  did  not  let  me  sign  a  work  order  showing  the  exact  amount  that  they  would  charge.  

I  assumed  that  the  bill  would  be  around  $ 150   for  the  two  rotors.   When  they  were  done  with  the  job  they  charged  me  almost  $ 280   saying  that  there  was  a  $ 100  charge  for  labor  (which  they  didn't  mention  before).   The  manager  hurried  to  leave  and  left  me  alone  with  a  new  employee.   When  I  called  the  next  day  he  was  extremely  rude,  almost  yelling  at  me  on  the  phone,  saying  that  he  told  me  about  the  labor  charge  (my  girl  friend  who  was  with  me  didn't  hear  anything  about  a  labor  charge  either).  

At  any  honest  car  repair  shop  a  customer  gets  a  written  estimate  which   he  has to  sign  before  authorizing  the  work.   It  is  obviously  not  in  this  businesses  interest  to  make  it  clear  to  the  customer  how  much  he  would  have  to  pay  at  the  end.