Pathethic Service & No Customer Focus

Purchased a trimtech trimmer on Sunday 6/09/2015 at 10am guy that sold me the trimmer said if there is anything wrng with it bring it back within 14days give me my money back, well well the trimmer was malfunctioning and smoking within 3 hours of the time i bought it. Took it back to Makro only to be told no they cannot refund me or give me a new one as they need to send it in for assessment, what ******** is this. i bought this item less than 3 hours ago, something is wromg with it, now i got to wait for them to send it for an assessment but who pays my gardner that i hired to trim my edges no one. The management at Cape Gate really needs to go back to traiining as they have no customer focus. They did not handle the sistuation in a professional manner blaming me that i did not used the produc t correctly, bols statement to make especially to a consumer without knowing the facts or being technically minded, did they ever hear of Deformation of character. I really cant understand how managment can create more havoc then anyonel else really dissapointed and not goign back there