Open box and broken drill and horrible service

So I went to Builders. Saved up so much money so I could buy my husband a drill and tools. This was on the 10/09/2022. When he wanted to charge the drill that he was over the moon about. In the box that was given to me open BTW. A box he just took off the shelf. The charger was wrong. I bought a Ryobi there was a Braun charger nicely wrapped in the charging box and paper. Went back on tthe 17th to the store. BUILDERS WAREHOUSE TOKAI all they did was take another charger our of another box probably and was gave it to me. When they asked if the box was sealed I rep**** no I didn't even know it was supposed to be. I took the one the saleman gave me. So instead of looking into that and giving me a new box they just gave the charger. Convincing me that is all I needed. So on the 30th my husband charged the drill for the amount of time needed and the light just kept on flashing red. Knowing nothing about drills I said maybe it's supposed to he like that. Well. Not even 15 minutes and the drill was dead after a 4 hour charge!!!!!!!!! How many times must I come back to the store and why the hell did they keep my slip the first time I came back when they exchanged the charger!!! I spent so much money that I saved that day at the store and I'm disappointed that this is how I got treated. I knew absolutely nothing about drills expect reading reviews online. The saleman was in a hurry to sell me drill bits and parts and then a kind customer advised that those things are not going to work with the drill.

I need my slip and I need a new drill or my money back! I'm not just going to leave this issue unresolved