Eligibility: The eligibility is done is 2 stages. First an analyst will review and make a recommendation, then an officer will review the recommendation and make a final determination. Your eligibility has been reviewed by an analyst.
MI3 - This refers to the Ministerial Instructions. As per MI3, applications received by the Centralized Intake Office in Sydney, Nova Scotia on or after July 1, 2011, and that meet either of the following criteria shall be placed into processing:
Applications submitted with an Arranged Employment Offer or applications from skilled workers.
"Applicants will also have one year of continuous full-time or equivalent paid work experience in at least one of the listed NOCs and not combined partial year experience in multiple NOCs. This work experience will reflect the actions described in the lead statement for the occupation as set out in the occupational descriptions of the NOC, including the performance of a substantial number of the main duties and all of the essential duties described."
Based on this, the analyst has observed that you did not upload a work reference letter from your employer and there is a LoE. The analyst confirms that you meet the CRS and MEC, but has flagged it fro the officer.
If you have mentioned what you say in your post in LoE, you are good.
A11.2 is your eligibility, R15 for CRS and R76 for MEC.
If you have explained that you do not work for the bank, but for the agency, you do not need to do anything.
But if this is not clear, you should send a LOE via CSE and explain your relationship with the bank and you being the employee of the agency, and not the bank.
Hope this helps!