Missing Photos

Hi! Not sure if this is the right place to post, but I need some advice and I'll try to keep this short so feel free to ask for more details if necessary! My ceremony was June 29, 2021 and I hired a photographer in August 2020 and paid in full by December 2020. Because it was my first time hiring a photographer for anything, I didn't think to make sure turnaround time was included in my contract--my fault completely. However, after reaching out in July to ask how long pics would take and again in August, my photographer told me she'd have them to me within a week or 2 from the dates I asked. Included in my package were a digital gallery and a custom USB with all the photos to be mailed to me. After being lied 2 a couple times about turnaround time and sending a lengthy message, she finally said her turnaround time is 8-12 weeks, which just passed Tuesday. So I finally got my USB in the mail and there are very important pictures missing. We had a small ceremony so we had posed shots with different guests and NONE of those are on the USB or in the digital portal. Is it normal for a photographer to completely leave out shots? We don't have the ones with just our parents, friends, etc. Because she's lied so many times idk what to do next. Should I just ask for a partial refund? I'm so angry because the guests were a major part of this and we didn't just want pics of us.