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redd456 said:
hey there , my application was rejected too. What is CSE? can you explain how i could make them re-open my application?


depends on the reason you were refused. If you were refused for something you did or did not do, you cant to anything about it. CSE- case specific enqury

https://secure.cic.gc.ca/enquiries-renseignements/canada-case-cas-eng.aspx
 
How do you repay the refunded fee?