They have horrible customer service, who literally disconnects in the middle of a conversation because they think the conversation is over. And they don't give the refund they promised.
I asked for a refund via email. They ignored my email. I used the chat system on their website, and I talked to two people to make sure the refund is processed. And yet they still charged me a month later. Be careful when you use this website. It's almost a scam. I'd never use their services again