Air,
I can clearly understand .. I myself went thru same situation .. Thew report given to you will not have "imm" suffixed to the report number .
The report you have is standard report which can be used for studies , employment ,etc
The report specific to cic will have "imm" suffixed to the report number .
You can get this specific report easily . You no need to submit docs again ..
In your WES account , there is an option to order a duplicate report . You can do that . Make sure you select the purpose of report as "Immigration " . You need to pay some 30$ fee I guess .