B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
91%
91% -- share of non complaining unhappy customers who never buy again for unhappy customers who don't complain (2026)
91% of unhappy customers who do not complain will never buy from the company again.
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
91%
Unit
Percentage
Data Vintage
2026
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
astutesolutions.com
Primary
Tier C
https://astutesolutions.com/blog/articles/how-to-measure-customer-satisfaction ↗
Source Article
Customer Satisfaction Measurements: How to Measure CSAT Accurately
Original Research
astutesolutions.com
· Original study ↗
Methodology
Widely cited customer service statistic, original study not identified
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
unhappy customers who don't complain: 91% share of non complaining unhappy customers who never buy again. Source: astutesolutions.com (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/non-complainers-never-buy-again
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<blockquote cite="https://lighthousedata.io/data/non-complainers-never-buy-again" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>91%</strong> -- share of non complaining unhappy customers who never buy again for unhappy customers who don't complain<br><small>Source: astutesolutions.com (2026) · <a href="https://lighthousedata.io/data/non-complainers-never-buy-again" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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