Firestone Complete Auto Care review: Oil pan cover and gasket credit during repair by technician

I took my car to Firestone in Hackensack, NJ to get my oil changed on 7/5/2023. I noticed that my oil was leaking out of my car so I took it back on 7/7/2023 and asked for my car to be checked because it never leaked before and that I didn't want the same technician to work on it again and he did, I was told it was fixed. I again noticed that it was still leaking so on the third visit on 7/24/2023 I was told due to leaking upon inspection John told me that the oil pan and gasket was cracked along with another issue that was not on my recommended service printout sheet. I asked why wasn't this noticed before, because my oil wasn't leaking prior to me bringing it in for service. John then proceeded to tell me that I would have to pay $200.00 to fix the damage that was caused by their technician. I never had a problem before after any oil change with them.