Ok, I'm kidding, (but I'm really happy)

Without saying anything, find their customer service quickly. It should be no problem, the after-sales service part. I don't know what brand you bought, for example, Bubu Cat brand morning education machine in Mengxing Mall, there is no reason to return it for one week, and there is no reason to return it for one month if there are quality problems. Warranty for one year, and replace it with a new one after one year. Now everyone is fighting for after-sales service. I think the one you bought should also have regulations.

In your case, there must be quality problems. Talk to them. Good luck.

Remember, first, buy good things, second, buy good quality things, and third, buy good after-sales service things.