173 cc petrol lawnmower

On 29 Jan 2017 I baught a ryobi lawnmower 173cc at mica hevitt str springs. From day one this lawnmower has newer been working like ot should, only givving me problems. It was leaking petrol from the air intake, and didnt pick up revs. I then sent it back for repairs, waited 6 weeks for it to return and still the same problims, nothing changed. So again I sent it in for the same repairs and waited a few weeks again and the problem ws still the same. The then exchanged it with a new one from the benoni branch. The new lawnmower worked fine for the first half an hour and then the **** starts, droped revs, ripping the grass to sredds, and miss fire all the time and usses a lot of petrol. I am very dissatisfied with the product and with ryobi service. I woud like my money back, not a nother lawnmower that will only give me **** again. Mica Hewitt told me tht rhey would sort this problem out with ryobi, this was on saterday 9 sep 2017. Contact pwrson at hewett mica is Chris, realy helpfull person, but I am very unhappy with ryobi.