Diaper exchange?

Ap

I got tons of diapers like Huggies and Pampers at my baby shower but I am a bit of a crunchy mom and wasn’t planning on using either brands.

I use Cloth Diapers or biodegradable ones and neither brand is.

Someone said I can return them but I don’t know where they are bought. Can I go to Walmart without a receipt? Or target? What to do?