onkyo usa failure to repair/replace recurring defective problem receiver- rude, arrogant, service so-called rep New Jersey

I had many problems with a TX-NR709 receiver over the course of the 5 year warranty. Had 4 occasions during warranty  that both onkyo & store techs diagnosed HDMI not working. 2 months after warranty expired, the HDMI problem was once again diagnosed by Onkyo tech support in an attempt to get this stinking receiver to work!! The techs were patient, courteous, and professional. They suggested I speak with their senior technical specialist  to either have onkyo repair or replace this unit under the terms of the expired warranty (being that this was a recurring pre-existing problem).  WOW!  the rep Brian Tecchio is the most arrogant, discourteous, demanding poor excuse of a service rep I have ever encountered!!  After meeting all his myriad requests for documentation and going-in circles debate in his arrogant attempts to deny the problem, he finally agreed to replace my unit with a comparable quality unit.  2 months later I had to call on the status of the agreement.  The next day he sends an email offering a refurbished TX-RZ710 receiver for $390 bucks!  I can buy that model new for $250 bucks!!  WOW!  Onkyo stuck me with  a $1,000 buck defective receiver, and then this arrogant, smug, smartass tries to pass off some replacement  garbage receiver I could buy new for  $140 bucks cheaper!  Onkyo should send Jersey boy Brian Tecchio to Japan  for repairs!