Cynergy Bank Complaints
Cynergy Bank is among the worst-performing banks for complaints.
What customers experience
Cynergy Bank received 1,818 complaints in the 2025-01-01 to 2025-06-30 reporting period -- that is roughly 5.3 complaints per 1,000 accounts, which is below the sector average of 7.4. Compared to other banks, Cynergy Bank receives fewer complaints per customer.
Total Complaints
1,818
In 2025-01-01 to 2025-06-30
Rate (per 1,000 accounts)
5.3 →
Sector Average
7.4
per 1,000 accounts
Complaints by Product
| Product ↕ | Complaints ↕ | Share |
|---|---|---|
| Banking and credit cards | 1,813 | 99.7% |
| Home finance | 5 | 0.3% |
How does Cynergy Bank compare?
Complaint rate per 1,000 accounts
Bottom Line
Cynergy Bank is among the most complained-about banks in the UK. If you have been frustrated with their service, the data confirms your experience is widely shared. We would encourage you to make a formal complaint and escalate to the ombudsman if needed. If you are considering switching to Cynergy Bank, this record is worth factoring into your decision.
About This Data
Data sourced from official UK regulators for the period 2025-01-01 to 2025-06-30. Complaint rates are calculated per 1,000 accounts. Ombudsman uphold rate from the Financial Ombudsman Service. Full methodology