1. Why she changed your NOC. When you applied did you make sure that the job duties match those in NOC B as in HSRDC web site?
2. Why did not you tell her in the phone call that you are on notice period and inform her about the new job..do you expect that she will believe that you apply and got hired on this week period workout even giving the two weeks notice period..I remember that my advice was to be honest!!
3.Now you have a different job noc than what you applied with..all forms has to be changed and this my cause much delay..you may also have to wait until you get your payslip so you can provide it!
4.Can you make your new employer give you an offer letter with the same NOC..I mean the NOC C..by this you only have to go ahead and sit for IELTS..this makes it less complicated as I dout that she will challange that you are working in NOC B as she did with your current job..and you don't want to be in dispute with AINP officer..do you?