Family Dollar complaint: Cashier didn’t offer children a receipt

I sent my kids to the store for a box of diapers the price said $20 but rang up $23 the cashier sold them a pack of diapers, never offered them a receipt. I took the pampers back to the store and asked for an exchange or a refund, the store supervisor refused to do either because we didn’t have the receipt she failed to offer the kids. So I stood there and said no business will be exchanged until we get this resolved she walked and away and said we had this discussion already so I asked for cooperate number every last employee refused to give me the number. I said you will call someone up here if I walk out with them the continued to ignore me. So I left the diapers I didn’t want a left with the diapers that I needed. I offered to pay the difference but no associate would proceed with the transaction so I left. The. The manager finally decided to follow me out the store to get my plate number. I am not a thief I am a tax payer I was humiliated in front of multiple people because this African American lady failed to offer the kids a receipt. Was it because they were kids she didn’t offer the receipt? I am sill willing to pay the difference but I have never been treated so rudely and undignified in my entire life and the whole situation is very distasteful on my behalf and your employees. My name is crystal payne my telephone number is 216-612-0334. The incident occurred between 6:00pm and 7:05pm. I do apologize for just walking out and not leaving the remainder balance for the diapers. The other diapers that I want to exchange was left at the store I didn’t Leave the store with those.