American Express vs Simlesspay: most-reported complaints compared
Most-reported issues at American Express and Simlesspay, according to reviewers on Trustpilot — classified by our automated reader and backed by verbatim quotes from distinct reviews. This is a side-by-side of what reviewers report, not a score, rating or recommendation for either company.
American Express
TrustScore 1.3 · 950 reviews on Trustpilot.
221 reviews analysed, 2025-11-28 to 2026-11-09.
Complaint rate (recent window): 94%
0% of negative reviews get a company reply.
“It took 3 months, hours of complaints and a complaint to the ombudsman to resolve.”
Simlesspay
TrustScore 4.8 · 7,699 reviews on Trustpilot.
1,053 reviews analysed, 2026-01-11 to 2026-11-08.
Complaint rate (recent window): 1%
94% of negative reviews get a company reply.
“You can't get to speak to human being and chat online took over 3hrs with no one to talk to.”
Reported on both
Issues with an evidenced category (at least two verbatim quotes) on both sides.
| Issue | American Express | Simlesspay |
|---|---|---|
| Support unhelpful | 50% | 11% |
| Account/app problems | 23% | 21% |
| Support unreachable | 14% | 34% |
| Billing errors | 12% | 17% |
| Other | 7% | 9% |
Method: reviews are classified into a fixed complaint taxonomy by an automated reader; every category shown is backed by at least two verbatim quotes from distinct reviews. Figures are census classifications, not official statistics, and reflect what reviewers reported — not findings of wrongdoing by either company. Not affiliated with, endorsed by, or sponsored by Trustpilot A/S, American Express or Simlesspay.