Faulty product, faulty service

<p>Purchased a Samsung Microwave oven at Dion Wired Woodlands Boulevard on 2017-04-23. The microwave oven was returned to the store on 2017-06-13 as it had stopped working. The Manager on duty confirmed that the product was not working and sent it to the supplier. We received the Microwave oven back on 2017-06-29 with the resolution that nothing was wrong and the product was working. This after the store manager tested the product. The microwave worked for a couple of days and again we had taken it back to Dion Wired on 2017-07-04. The product was again sent off to the suppliers, who it seems are not able to find fault but refuse to authorise store credit.. At which point do you realise that you sold a faulty unit and give the customer another one??? Is it normal for the range of Samsung microwaves to work from time to time or can we agree that a unit, sent in for repairs twice in such a short period is faulty??</p> <p> </p> <p>Well done for not looking after your customer.</p>