Bad workmanship

They replaced my geyser, on instruction from the insurer, in September 2011 and also installed a drip tray.<br> <br> I noticed water marks on the ceiling and with further inspection discovered that they attached the new geyser with nails, through the drip tray, to the roof beams and water was leaking through these holes.<br> <br> Although the geyser was installed in 2011, the bad workmanship was only discovered recently when the water marks on the ceiling became visible.<br> <br> I phoned *** which is a call centre for plumbers and received no assistance.<br> <br>