Good list
@Paprika and good to be prepared! This is the way I think
I had a burner phone briefly, but it would raise too many questions if found
My risk with using my own phone without another e-sim is that the agency would text out of the blue, unexpectedly - HPL did this to me before and i was furious
I was in the car with wife and school drop off, not our usual routine that day. Couldn't confirm my appointment by 9am. I was fine to let it go and lose my spot... but HPL texted me!!! Luckily phone was on silent/vibrate mode. And luckily that car didn't have Apple Car Play where it shows up on the car screen. That would have been disastrous... my other car reads out the text message for you too!
I had words with HPL privately afterwards. They couldn't seem to understand how difficult a situation they put me in by contacting my unsolicited. They were angry I didn't confirm, I of course said I know didn't confirm in time... so what? That was on me and I accept the consequence of losing my spot. I told them to cancel it b/c I didn't confirm in time, but DONT TEXT ME if I don't text first. Or at least maybe send a blank text as a warning, so I could tell the wife it was a wrong number or something
In the end of it, they didn't seem to understand where I was coming from, and I stopped using them since then. They seem to be doing well now regardless
TL/DR - 1. make sure agencies don't text you uninitiated. 2. Be careful how your Bluetooth connects everything automatically eg: Carplay or even voice... I've had instances where my car arrives home, turn off the car, and I lose my sound on my mobile phone, but the conversation automatically switches to speakerphone inside the house?!?