Unsolicited spam SMS from 07704028561 (+447704028561) with the content “Unsure if you qualify for a refund of PPI paid on a loan or credit card? Reply PPI and we will run a no obligation check or reply STOP to opt out. TPPCO”
I’ve found that all of the PPI spam SMS messages I’ve had over the past few years have been from o2 (Telefonica) owned numbers. I’ve tried to report almost all of them but o2 don’t care.