Unprofessional Behavior

I put in a notice to cancel my contract on the 22nd of November with the final payment coming out in December. To my surprise when I called yesterday to confirm my cancelation there was no cancelation initiated on the system. The gentlement I spoke to understood and acknowledge that it was an error on their side as the cancelation is suppose to be December and if he put it in it will be only in Jan and I will need to call today and one of the Managers was going to override the cancelation to December. Today I call and Zama tells me she can't assist with that and is imposible what i was advised yesterday and tells me all her supervisors are on the meetings and continues to put me on hold until I drop the phone