I got the same situation!! For the past three months or four months, I got this the same number and I DID NOT answer it or SEND a text just knew right away it is scam or someone is trying to get the information. I called the vz and asked them to change the phone number but it apparently did not work at all. I had to pay for MORE!! There is one way that you should file a compliant to the FCC and they can investigate. Do it NOW than later.
Caller: 615-372-2999