Granted we had different BCPs when I was on reserve, years ago but I was contacted by a BCP when I called out sick once on probation. I called in and was unaware that there had been a trip assignment, as I had not set up txt alerts or logged into crew access because I was quite sick. Apparently a trip had been assigned but the scheduler never mentioned it. Granted the email seemed like a form email and I responded to it without any follow up. So not too big of a deal in reality but it did seem like an issue when I was on probation.
I was also under the impression that if one calls in sick after a trip assignment that trip credit value is deducted from one's sick bank, not the lower value. If one calls out sick without an assignment the penalty is quite low but I thought it was 3.50 not 2.50.