Do not take the risk here, they do not check the duties only but also the job title, that is why there are two NOC for one almost similar job.
Job title is also important with job duties and responsibilities. But in her case where CIO have kept no record of her file,
what she needs to do is just edit/ amend her job title do not worry about certificate or skills diploma etc, and reapply.
If she applies under LPN but keeps her job title as RN then CIO will look at the job title and then NOC which will be different then CIO can 100 % refuse her application.
I advice her better not to take this risk. We are clever but CIO is our master in these tricks, so do not play with masters.
If her GT Ielts is ready then she must not wait any more if not then wait and apply after 2 months.
Hope it helps.
Thanks
Wicky