The firm didn't warn you that you had to pay for community members

Hello, I bought a paid plan for one editor for $15 and then added a project developer so that he can use the development mode. But now I realized that it’s a paid plan and now I have to pay for it, even though no one warned me in advance. Tell me what to do. The person I added didn’t make any changes - he only commented on the layouts, and Figma is asking me to pay $30, Even though she didn’t warn me about it in advance - it’s a scam!