Who I have the same questioned this topic

I am not a Verizon customer for any service.  One of Verizon's customers entered my phone number (presumably) as a secondary contact number, and I get that customer's service texts regularly.  For instance:

sms_no_reply@verizon.com / no subject / Thank you for your payment to Verizon in the amount of $469.77. It has been applied to your Verizon account ending in 3425.

I want it to stop already.  The people I've talked with at Verizon have not had solutions.

Easiest: Is there a phrase I can text back that will remove me?  I've tried the standard "STOP" and "UNSUBSCRIBE".

Or: Can Verizon search for my (non-verizon) number in somebody's account and remove it?

Thank you.