What would you do about vC demanding 2x liquidation preference?

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Illustrative scenario prepared by my practice.
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Hypothetical question

Has anyone dealt with something like this? I'm not sure what my options are.

VC demanding 2x liquidation preference. I've been dealing with this for about 3 weeks now and the situation isn't improving.

I have already tried to resolve this directly but got conflicting advice just saying.

Do I have a strong case? What should my next steps be?