False advertising and bad service

They sell you a DIY kit, but it is not DIY. Even their own installer confirmed that they are selling a chinese product that has other sizes than what we use in SA. They do not supply a conversion kit. If you pay extra for the installation kit, they give you a bag full of 50mm fitting but the panel they supply does not have 50mm piping, it is smaller. Gave them an oppertunity to rectify the issue but they pass the ball back to the customer, making their problems , yours.