Text message with no phone number to block
I am receiving daily spam text messages from a small takeaway pizza restaurant (photos attached). The text comes through with the restaurant's name and no number at all. There is no option to call, all options are grayed out.
The "text stop to 88440" part of the text does not work and the number listed is a premium number that could charge up to £5 per text. I have sent that "stop" message twice now and it did nothing.
How do I block this number? I feel completely without control over my own device and who can send me message. I don't want to just filter the messages either, just want to block it entirely. Hope someone can help.
iPhone 13 Pro Max