Requested a refund by email 20 minutes after installing, and they replied that the refund was approved. I did not receive a refund, so I emailed a second time, and they responded to wait 10 business days. After waiting for the time stated, I called my credit card company and filed a dispute. Highster Mobile tried to deny my dispute because I used the service, but this was surprising because their website says you have 10 days for a refund. I finally got a refund once I emailed my credit card company the email showing that Highster had approved my refund; all this took three months.