*********** Sureswipe dissapoints again

We have been experiencing problems with the sureswipe card machine multiple times over the last couple of months. As business owners we fully understand that everything does not always work 100% and sometimes need to be sorted out, but I get weekly calls from customers at our shop that are unhappy because they have to go draw money, because the machine is not working properly. We have had multiple technicians come out to fix the problem. Every-time they are there for a couple of minutes, say the problem is fixed, but cant tell me what caused the problem. Couple of days later same thing. We are losing customers and income because of this and this is not the way we want to do business. We are really unhappy and fed up with Sureswipe.