Nope , calls and emails don’t affect your application.Decisions are based on IRPA, that would be against procedural fairness. Everytime you call the IRCC call centre or email them , they are required to leave a notes on your file and the reason for your call, that’s why that info will always appear on your gmsc notes. It doesn’t affect your application negativeply.
You are absolutely correct but it caused delay
your application
If you call or email once month or 3 times a year no issues but some guys keep emailing or call every week
Then officer thinking why this person is so much in a hurry let’s check out deeper into her/his background more
When your application is delay it’s a negative impact In my own opinion
It happened with me because of the work permit i used to call the call center every time you know how long take them to give me my work permit usually the process was 3 months but they transferred application to my Edmonton office after 9 months I got my work permit
I learn my lesson in hard way