NETGEAR Customer Service fear tactics to force me into purchase; outright lied california

So I have a Netgear R7540 router.  It does not extend to even 1/8 of the range advertised.  Hade to purchase a wi-fi extender for security cameras.  I placed it 23 feet from router and it only registered the 2.4 GHz band.  So I googled their customer service, got the 1-888 number and dialed it.  First guy was rude, said a technician would be calling me and hung up in my face!  I called back and at the same time the "tech" called me back. 

Very thick accent to where it was almost impossible to understand him.  No offense but communication is the main factor of a telephone help service call.  he then did a remote access to my laptop.  went thru multiple files and screens pointing to programs not running then to system config to show me the problem.  I had been hacked by people in another country and they were blocking my programs from running he said.  It was not the Netgear equipment.  It was hckers and my local network.  Then he stated they had access to my whole life and bank accounts and everything and basically my computer was locked up without getting them removed. 

I stated that I was on the internet and and had 6 devices showing in my wi-fi network.  He then reiterated how these random hackers were going to ruin my life if I didnt do something about it and to hold while he discussed my situation with his supervisors team.  he came back with a list of what I should do, and he was more thatn happy to help for free,  so which firewall protection plan did I want to purchase? 1 year? 3 year? i declined and hung up/  he called bavck 4 times, which i promptly ignored.

I am supposed to have firewall protection with the router.  So why are they trying to sell me more?

Plus the specifics of the equipment are vastly exaggerated.  $400.oo worth of equipment and i cannot receive wi-fi signal 60 feet from router?  they advertise close to 200 ft!!  All lies,  To throw out blatant lies and scare tactics to coerce me into a purchase when IU just needed help was a ridiculous low blow.  Did not receive ANY resolution to the problem I was experiencing from their brand new equipment.  Am completely disgusted at the lies, scare tactics and complete lack of any customer servic that I received on this call.  Screw this company that uses their avenue of help to offer nothing but a scam and con to their customers .

Good Day