Fattmerchant Reviews in September 2026: User Ratings, Pros & Cons

The customer service is awful we’ve…

The customer service is awful we’ve been unable to have any issues resolved. They’ve double charged our customers many times. This is unacceptable

This is a predatory business

This is a predatory business. I was told my plan would be on a free trial and I have been billed $500+ without ever accepting a charge. My emails have been ignored. Takes hours to contact customer service and they do not help.

constant terminal issues

constant terminal issues

Can't get report at end of day for…

Can't get report at end of day for sales and can't get a tip report. Not worth saving $50 a month possibly

Terrible Service we have lost over 10k…

Terrible Service we have lost over 10k already in disputes even though all documents where supplied, we have over 100 declined sales that we had to figure our ourselves ....they have tools that don't work and customer service is seriously lacking. We have never had this issue with any other Merchant Service DO NOT risk your business with Fattmerchant aka STAX, they are really the worst service we have ever had the displeasure of doing business with and we have terminated their service.

This company is a total fraud

This company is a total fraud. We signed up with the provision that they wouldn't charge us before we started actually using the product. Then they started charging our company and refused to stop. We never charged a single transaction through them but they charged us for 4 months and refused to refund anything. Avoid at all cost.

This is the worst company we have ever…

This is the worst company we have ever dealt with. Completely fraudulent and will keep taking money from your account after being told repeatedly to stop!!!

This company will add monthly fees and…

This company will add monthly fees and if you do not catch it within 30 days, they consider them valid. Once they do remove, they may and have added the fee back months later. Again if you do not catch it, they will consider it valid.They consider this normal business and say that "we need to watch our statements."

Been six weeks and still not up and…

Been six weeks and still not up and running, however did receive a bill for $499.00 which they later said to ignore. Follow through has been horrible, passing the buck and hollow promises and appoligies.

Customer service and the pricing…

Customer service and the pricing structure has been great. Changed systems recently and couldn't be happier.Michael