Hi Chrissy,
I'm not having that problem to the extent you are. And that might be because that I use an obscure browser (Opera) that has a VPN switch so the entity on the other side doesn't really know where I am located. (And, of course, always using private window for inquiries I want to keep private.) But I haven't really figured out yet how to create a "stealth" e-mail address that won't show up somewhere on my computer.
And I see you're dealing with text/call issues also. Texts haven't bothered me so much, but I do get my share of spam calls. I've had some fun teasing the callers (Hun, you can get a better job than this, Military Intelligence, what is the password for the line you desire? Oh Jeeze, the police are here, get off the line!), tormenting them (putting the handset near the speaker on my computer/sound system and, as Verizon very kindly warns me of "potential spam", just not answering.
I hope you find a way that works for you.
Love, Carolina.