Family Dollar review: Product and service: tower firework speaker $18.73 w/tax

I purchased the speaker on 2/14 at the Family Dollar on Division st. Parkersburg wv 26101. I am a faithful family dollar shopper but after tonight i think i'm going to have to take my business somewhere else if the situation isn't taken care of. I tried the speaker out its very distorted and not very loud to be a tower speaker. This was a gift to my son for his birthday he was not happy with it either so i was returning the speaker to get his money back so he could buy something he is happy with. It was almost 9pm when i tried to return the speaker. i walk in and the key holder was rolling her eyes and saying omg not right now. I don't think she knew i heard and seen her. So me being me i walk in all happy and chipper and say hey i have a return and i have my receipt. she said all i could do was exchange the speaker for the same one since the box was open. I paid cash for the speaker so why cant i get cash for a refund since i have my receipt. She said it was policy and she has complained about this to corporate for years and they have done nothing to accommodate the customers on returns. So I am not a happy customer and i don't feel that your policy is correct. Thank you I would like my cash refund.