Refuses to stop sending SMSes

Somehow I've ended up on a Hi-Fi Corporation mailing list and I keep getting SMSes from Hi-Fi Corp. The frequency of the SMSes has grown to the point where I now sometimes get three SMSes a day! My inbox is filled with SMSes about their products.<br> <br> I've rep**** with STOP to opt-out as mentioned in the SMS, but they keep coming through. This is blatant spam and disregard for the customer's wishes. Avoid buying from Hi-Fi Corp or you risk ending up getting three SMSes a day from them.