Verimark Tri-Sweeper - unable to maintain

I need to find out why does Verimark make it so difficult to get spares ONLINE from their site and also missing videos on how to replace certain parts that needs to be replaced after a while - for example the Tri-Sweeper brush battery as well as the front round plastic brush.... it is just impossible to maintain the sweeper - so basically Verimark is selling us a broom that is only going to last 2 years and you cannot replace parts because they don't show you how and it is not always convenient to go to a store walking in the mall with your broom in your hand - it looks silly... that lets me believe that you sell this tri-sweeper only to last 2 years and then we must ditch it in the dustbin and you expect us to buy another one. This concept does not sit well with consumer.