Rico Trailors Roodepoort not up to standard

I need to lodge a complaint about a trailor company. We bought a food trailer from them and the fire extinguishers that's supp**** with the van is old stock. We have been refused a fire certificate due to the fact that they are not functional. This is a brand new van we had built through them and we were told that everything is ready and in order to take for clearance certificates.