Business ProfileforSOS Cat Rescue and Rehoming

I was trying to adopt a kitten and paid them only one fee of $100 to reserve the cat I wanted. I waited a couple days too long to do so, which was on me, but this next part is on them. The next day (Sunday) I received a message from the volunteer in a group chat with the head saying the cat I wanted was already adopted. This was my first time going through a shelter, so I thought someone would have reached out to me to let me know that the cat was already taken before I paid.********* asked if there was another one I wanted. I was sad because the cat I wanted was gone and frankly none of the the other cat listings caught my attention. So I asked for a refund. I didnt get a response, but I didnt press on since it was Mothers Day. The next morning I still received no response so I politely asked again for a refund. The head responds by sending multiple photos of available kittens. I started getting frustrated because I said I wanted refund. But I was still trying to be polite and stated a second time I was no longer interested and I would just like a refund. She tells me that I would only get $75, that $25 is a non-refundable application fee (for clarity to the BBB, you apply for free). I checked the website, emails, even the application. There is no mention of it and I don't remember it being mentioned in the phone call. She says it's in the email with the contract (no actual signing was done). I have two emails from them: one with the contract and one without. It doesn't mention it. I sent screenshots over to her not--not once, but twice. In turn she responded to me hours later saying "I'm tied up, I'll look at this later." But they continued to send me more cat pics in effort to change my mind and not lose money. All I could do was cry from frustration. All I'm asking for is to have my full $100 be refunded to my Venmo due to lack of documented info. The attached documents are the emails that prove there is no mention of an application fee. Texts included.