Rant!!!

I was in walmart yesterday I had to go and pick up milk & some small items. As I was exciting a man came up to me and my child. (Man that clearly works there) He was talking to me that they open a photography studio and showed me samples of pictures and their sale they have. I was interested and he told me I had to sign up for a certain date to get the sale. I told him that was fine, if anything Ill call to reschedule because I didnt have my schedule in front of me. He told me that was fine. He wrote me a date and ask for my email. No problem at all.... He seem friendly and then I was about to leave.... He said I had to pay... I told him no, i didn't feel comfortable paying for a session until I know without a doubt Im making that appointment. He gets pissed off at me and told me that "your planning on getting the picture done anyway & you can reschedule". I told him I understood but I don't want to put money down until I know 100% I can make that appointment. I already explain to him I had to check my schedule in the first before signing up. He insisted I sign up with my name and email to get that discount. He was mad at me for not giving him the money. I told him he can cancel me because I dont. Know my schedule and I do not like giving money up front. I always take my son jcpenny instead bc they work so well with schedule. My son has therapy appointments and other things during the holidays I will be taking him too. This man acted like i owed him money. Nope not going 2 pay until i know without a doubt I can make it. He was just rude plane and simple.