Charging brick issues

I recently bought a 20W charging brick from the website and I used it for the first time today. For some reason, it has stopped working and i don't know why. There is no visible damage to it and i haven't caused any damage to it either. It just stopped working. I'm quite frustrated because 30 dollars for a charging brick that used to come with the phone should at least work well. Is there some way I can get a replacement or a refund? I wasn't able to find a proper topic for this inquiry so I've just chosen a random one