You can buy it back. My children began to take small steps to do early education when they were more than five months old. He was going on a business trip for half a month, so he got a refund because he couldn't continue. Later, when he came back from a business trip, I quickly bought it back. To tell the truth, children can learn all kinds of knowledge by following small steps, and often accompany their children to do semi-finished products at home, which also makes me handy. Baidu search