Bad/No After sale Service

I bought a machine from Evetech. Within a short while the start button failed. I have brought the computer in for repairs twice. On both occasions, I got a message to fetch the computer as the repairs had been done. On both occasions, I returned home and connected the computer, only to find that it was in the same condition as when I brought it in for repairs. This is extremely poor service and total deception in stating that repairs had been completed and the computer was in working order.