"Unsure if you qualify for a refund of PPI paid on a loan or credit card?" SMS spam

This scumbag scammers are still at it, pumping away lead generation spam to persuade people to make PPI claims to which they are not entitled.

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

In this case the scammers used the contact number +447743623103 but they burn through dozens of SIM cards every day with their illegal spamming operations.

If you get one of these, you should forward the spam and the sender's number to your carrier. In the came of T-Mobile, O2 and Orange the number to report to is 7726 ("SPAM"). Vodafone customers should use 87726 ("VSPAM") and Three customers should use 37726 ("3SPAM"). Hopefully the carriers will act if there are enough complaints.

You can also report persistent spam like this via the ICO's page on the subject.  With any luck these spammers will end up on the receiving end of a massive fine.