Save-A-Lot review: cashier

Cashier was answering messages on her phone while helping the customer in front of me, laughing about her messages instead of telling the customer goodbye or have a nice day when finishing her order.
She did not greet me, she did however yell to another worker to let her drop her money and go "pee".
After my transaction, I waited til she was finished texting til she decided to grab my receipt without and kind of thank you or goodbye.

Now I know this isn't a high class store (which is why I avoid stores like this) but if I have to be courteous at work, I expect the same in return.

Thank you