Unresponsive Caterer/party Planner

Hi Ladies,
I’m less than 2 weeks from my big day and long story short, the sales rep/party coordinator (from the caterer) that was working with me left the caterer abruptly last month and told me another person would be working with me in her place. I said sure, and wished her the best! The new person has been extremely difficult to get in contact with, never returning emails or texts. I’ve only spoken to her once (after 7pm on a weekday and she didn’t even have my wedding file so she couldn’t answer a lot of my questions). She said to contact her anytime and she would talk with me. Knowing there’s a lot going on, I didn’t want to be pushy or rude to her, so I emailed over the weekend, and sent her a text earlier today asking if she could talk tomorrow. I have yet to hear from her, and I’m getting very anxious about it because we still have a lot to discuss about my wedding. I also don’t want to do all of this last minute. We haven’t even paid our final catering bill yet! What should I do? TIA