Rose Fence Freeport NY Fence Fell apart after 1 year freeport, New York

Last year Rose Fence installed a four thousand dollar fence for me.  Last week one section fell down.  Their contract states 10 year workmanship warranty so I asked them to insert the last 2 pieces of the pvc sections since it was very easy to insert all the other pieces.  I have seen the installer replace a damaged section in 10 seconds so I know it would take them less than a minute to do this.  They told me they would come take care of it in 2 weeks.  2 weeks later I dicover an estimate in my mailbox for $450 to insert the 2 tiny sections into the fence.  After calling them and asking for explanation I was told by a rude manager that I should consider myself lucky to only pay $450 because some people had trees fall down on their houses during a storm and they will be paying thousands.  I'm not sure how they connect the 2 completely unrelated situations but I'm assuming they are price gouging everyone after the storm last week.  The entire section with materials & installation cost me $180 last year & now they want $450 just to insert 2 small pieces that are not even damaged.  Good luck to anyone doing business with these crooks.