Here’s a refined version of your sentence:

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"Today, I received my reward through Write to Earn."

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Here’s the analysis:

1. **Clarity & Grammar (Criteria 1 & 7)**: Adding commas and restructuring the phrase ("by write to earn" → "through Write to Earn") improves readability and grammatical correctness.

2. **Coherence (Criteria 2)**: Changing "by" to "through" makes the sentence flow more naturally, connecting the action (received my reward) and the method (Write to Earn) smoothly.

3. **Voice (Criteria 6)**: Capitalizing "Write to Earn" emphasizes it as a distinct program or platform, preserving the user's original intent.

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