to me it is not an incorrect refusal, CIC agents directly go to overall Canadian equivalency.
which is just a bachelor 4 years in his report. so they are right at some point, WES failed to include second credential in final summary, you must have asked WES to correct it, basically include second credential at top, in finally summary, before filling your PR application
we had similar issue here before, I made one of my friend contact WES to update his evaluation, they happily did it.
Now, CIC, application form is flawed, or failed you in this case, they asked for qualification credentials, reference number etc, you submitted as an honest person, they automatically awarded you points, which is right thing, but they failed to ask you that what is your final or overall "Canadian equivalency summary" says.
now, what is the right thing to do.
firstly ask, WES to update your report,
which should look like
Bachelor's degree (four years) and College level certificate (one year)
then may be you can re-appeal your case, or just re-submit your application again after an invite.
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understand comments of the agent
he is saying, you said you have two credentials
but your report says
" a ‘Bachelor’s Degree (four years)"
the "a" means one,
he said, you claimed 2 credential but report shows only one.
but, he noted second credential,
"this foreign credential does not constitute to at least a one-year
post-secondary program credential equivalency assessment."
Now i am guessing, there is nothing to do with "As per the Ministerial Instructions respecting the Express Entry System"
he interpreted that, WES does not think that one year certificate is worth mentioning in final report, or in other words, its equivalency to Canadian study is less than a year, that is why they are not mentioning it in final summary.
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the only mistake you made is, filed the application, before considering the final summary report.
I did extensive study on this subject, to understand, what stands for "two or more", many people here on the forum asked WES to update their final summary, they got positive results, my friend did, they faced no problems at all.
my dedicated thread,
https://www.canadavisa.com/canada-immigration-discussion-board/threads/clarification-on-two-or-more-certificates-diplomas-or-degrees.535010/
people who got their WES changed
https://www.canadavisa.com/canada-immigration-discussion-board/threads/1-diploma-1-degree-1-post-sec-credential-only.264117/page-5#post-5153478
https://www.canadavisa.com/canada-immigration-discussion-board/threads/wes-eca-for-diploma-engineering-graduates.391526/page-2#post-5037983
https://www.canadavisa.com/canada-immigration-discussion-board/threads/1-diploma-1-degree-1-post-sec-credential-only.264117/page-5#post-5194502
they increase points also
https://www.canadavisa.com/canada-immigration-discussion-board/threads/1-diploma-1-degree-1-post-sec-credential-only.264117/page-5#post-5266551