Ryobi NO After sale service

I bought a Ryobi 2700 watt generator from Builders warehouse in Jeffreys Bay in December It was used to power a 300 watt egg incubator during loadshedding The regulator spring broke for some unknown reason Contacted Ryobi in Port Elizabeth and Johannesburg to enquire about a replacement spring According to head office in have to buy a complete carburator Sent an email explaining that the regulator spring is not part of the carburator 10 days ago and have had no response Port Elizabeth said they would get back to the salesman at Builders14 days ago Was also told that the part I require Is not covered by the guarantee I own industrial Ryobi chainsaws and brush cutters which are used on the farm If this is the kind of after sales service I can expect from Ryobi I will have to replace my equipment with a reliable brand