I got the same "come into the office immediately message" and I went into CW and was told that now every time you leave the country and reset your 90-day - your first report back in the country cannot be done online - it must be done in person or by mail. This has nothing to do with TM30 or your type of visa. The online report system is not informed when you leave and return, thus the schedule that it keeps is thrown off and must be reset manually. After the first 90 day report back, you can resume using the online reporting system. Again this was for CW - don't know if it applies in other provinces.