I received a text from 66299 advertising a fitness coaching service, which I didn't request, so I ignored it. Today, I received my mobile phone bill and I found that I had been charged for the receipt of 2 premium rate messages. My service provider said the number is associated with a company called Oxygen8. They advised me to reply "stop" to the message and email the company to reclaim payments. After contacting them, I received a full refund.