If you want an open ended contract the rates are:                          $55/week for 13 weeks or less
$35/week for 14 to 26 weeks
$30/week for 27-50 weeks 
$25/week for 50 weeks or more
Contracts that are terminated early will be back charged for the price difference between contract and actual time ad ran.  For example on an open ended contract you initially contract for 28 weeks at a rate of $30/week.  You then cancel the contract in week 4...you paid $120 for the 4 weeks on the 28 week contract but cancelled after 4 weeks your actual rate is now $55/week or $220 for 4 weeks you will be back charged the additional $100 to bring your account current.