Christmas and gift giving

Who’s right here? I told my mom that I wanted to treat her to pictures with Her grandkids for Christmas. She loved the idea and the studio was having a Christmas special where you get pictures for $30 and a free canvas which is perfect because my mom only wanted the canvas (they’re normally $100)

The studio has been booked full and the special ends tomorrow so I told her I can just have my Bestfriend take them with His camera (he did my maternity photos) and I can get a canvas from walker for $30 and then she said no she wants them done professionally or not at all. I feel like she’s just being picky now. I can’t afford to spend $100 for a canvas when I’m a single mom