My guess for this 'Gost Update' based on update 'Eligibility - not started' that you received on Mar 02 ----> The CIO office would have completed the R10 check and promoted the file to the next step 'Eligibility'. This step cannot get over within a week or so, it's lengthy process. OR criminality check would have completed which normally happen in initial 1/2 months time.No there is no eMail. Last time [02-March] when I checked with IRCC through web form they mentioned -
Eligibility - not started
Background check - not started
You may submit the web form after few days to get the latest update. You might see either Eligibility marked in progress or change in CPC.