Aluminum case dented easily

I bought an apple watch series 7, aluminum case. It’s my first watch and I’m really disappointed with it. The frame is dented already. I was wearing it, I didn’t have any accident it probably had just hit the table that too not with any force. Why are they made of low quality aluminum? What can I do about it? It’s bothering me so much as it happened just the next day I received it. Please help.