Complaint with regards to sub-standard goods

We purchased a a Trimtech 220w mower plus 650w Trimmer on the 21/04/2014. In November 2014, after 7 months of use the mower stop working and as it was under a year warranty I sent it back to Makro PE for Repairs. <br> <br> On 15th Jan 2015 we received the mower back from repairs and when trying to use the mower it was still faulty and still did not work.<br> <br> I was only able to take the mower back until last week as my folks were away, and again returned it to Makro PE. I was informed me that Makro will speak to the supplier about getting me store credit as I did not see why I as the consumer now have to sit again with the mower in for repairs. I was informed today the supplier will not authorize store credit until we send it in again. It is on a 1 year warranty and out of that warranty it would have been in for repairs twice now and we sit without a mower for 4 months. By the time we get the mower back it will be out of warranty. <br> <br> This is unacceptable and we have basically ****ed away the money. I bought the Mower from Makro not the suppliers and want this sorted out asap. <br>