@JodW - ER/VC is what shows up every time the Easy Roam daily fee is triggered. Easy roam is triggered whenever you:
- Make or receive a call (including voicemail)
- Use any amounts of data
- Send a SMS/MMS
Based on your usage, I can see that there was quite a bit of calls, texts and even some data used on both of your lines. You can see exactly what was used by going through the different tabs within the Usage section in Self Serve.
Login to Self Serve → Select “View Usage” under your number → “View Details”
Here is a great article that explains what triggers Easy Roam
Those are marker to denote the start of easyroam. It wasn't actual call. If you saw it, the system received report of either an outgoing text, a call or a data usage.