Same property, different numbers
| Agency | Ref. | Asking price | Surface | Type |
| Agenzia Immobiliare Cortesi listing ↗ our page | — | €240.000 | 150 m² | appartamento |
| Immobiliare Cortesi listing ↗ our page | BA/254 | €240.000 | — | unknown |
The listings share at least two identical photographs.
A buyer reads one listing at a time. Side by side the numbers do not add up — and the difference is paid by whoever does not notice.