Onida — installation procedure

I Sudhir Parashar a serving army officer have bought a 1.5 ton AC 3 star model no SAC S183DFL-T from delhi.I wanted to install that AC in my hometown sonepat.On 1 june 2015 Mr Ravi and Mr Ajay have come to install the said AC.During installation following malpractices have been observed by me. 1. Only 3 fixing bolts were fixed in outdoor unit instead of 4 and when they were told to correct it they simply denied. 2. They have not connected the earthing wire which is a serious safety issue and when they were asked to connect again they told this is the procedure they follow which again puts a question mark on installation procedure. 3. Only 2 locking nuts were fixed in the stand of outdoor unit instead of 4. 4. They have not used all the accessories required for installation. The above mentioned problems were told to them and they did not pay any heed to it.Moreover they have taken full installation charges without giving full satisfaction to the customer.I want you to look into the matter and complete my installation taking all safety measures and ammend your installation procedures and organise proper training for your service engineers for safety and well being of customers.