Respond to a declined budget request without burning goodwill

Your budget request got knocked back and you need to respond without burning goodwill or just rolling over. This rewrites your reply three ways, assertive that makes the case for reconsideration and cites the business risk, diplomatic that keeps the door open, and a middle version, so you can push back or escalate at the right pitch.

My budget request has been declined and I need to respond in a way that keeps the door open or escalates appropriately.

Who declined it and their role: {DECISION_MAKER_ROLE}
What the budget was for: {BUDGET_PURPOSE}
Business impact of the rejection: {REJECTION_IMPACT}
My draft response: {MESSAGE_DRAFT}

Rewrite this message in three versions:
1. Assertive: makes a clear case for reconsideration, cites business risk or opportunity cost
2. Diplomatic: acknowledges the constraints, asks what it would take to revisit, offers a scaled-down option
3. Neutral: accepts the decision, asks for written rationale, notes the impact for the record

Label each version clearly. Keep all three under 150 words each. End with one sentence on which version is right depending on how final the decision feels.