Big O Tires

UPDATED

I sent my girlfriend (Kayla McCoy) down with a groupon for a full synthetic oil change and tire rotation (We paid through Groupon for their services). She gets home and tells me they charged her an extra $33 for TWO quarts of oil. They took advantage of her because 2 quarts of oil is no where near that much. The receipt is also very confusing. It shows a quart of oil is $7. 50 per unit and disposal fee is $3, but then was charged $33.

Also I want to add that on September 2 I went in and had my oil changed and tires rotated. They come to tell me whoever touched my tires last stripped all 5 lugnuts on my front drivers side tire. Which they were the only ones who touched it last, which is when I bought 4 new tires May 29, 2019. He then charged me for the labor and everything else even though it was clearly their fault that the lugnuts and lug stems were broke.

Also after looking back at my receipt today (my car takes the same oil as my girlfriend) and they charged me 9.99 per unit (was quoted at $7) and a $6 disposal fee (my car takes less oil then hers, so why was my disposal fee double hers) So I want an explanation of why my oil and disposal fee was more. Also I was charged the 9.99 for an extra quart of oil, when my car only "needed" 0.1qts more. Let me add that when you drain oil, you can't completely drain it all, so that 0.1qt was not even used.

I should have NOT given them a second chance. I WILL NEVER USE AN NTB/BIG O TIRES EVER AGAIN! I think they are running a shady business.