Alert: customers please watch your receipts. Went ...

Alert: customers please watch your receipts. Went in was helped by an older heavier set lady and bought a couple items that were half off amongst many other things. Well for one I DID NOT get half off, went back into the store and spoke with the same lady and all I could get was in store credit; fine only 5$. Then went out to car and was able to examine the reciept a little better and noticed we were charged 2x for multiple items up to 30$ worth. So we went back in and started talking to thin shorter women with short dark hair. Explained to her the scenario and that I was not going to just get in store credit for that, that I wanted my money back. Her exact response was "its all in store credit" I then said again no I wanted my money back I should not "have" to spend money in here for an employees mistake, I just spent more than 100$ now and that hopefully the employee has not done this to just more that I. Her reaponse was ya welp she is going through some stuff and Unfortunately remained very sassy and rude.
Ultimately I did get my money back but truly feel this could of been handled in a better way. This establishment has lost my business. 4/26/19 @ 3:30pm.