Some vendors will promote cheap merchant account. Certainly, when a person checks the website, the fees are really low compared to other companies. The purpose for this is most of their expenses will never be advertised or they will request highly for other fees not shown. Other suppliers will present incredibly low prices, but if one reads the terms and conditions, one will discover that this only is applicable to certain cards or this low rate is momentary.
An additional way of scamming small businesses, though unlikely, is by vanishing. After the fees have been received, the provider will disappear altogether. The cheated business will have lost funds and gained no service.