Microsoft Refund Scam (DUMB)

I called them up a few times, their lines are shit so they had to keep calling me from different lines, i finally got on a stable line and talked with a guy for about 20 minutes. I tried luring him in with a file named “bankcard.exe” he didn’t buy it, but he connected to me with a real IP (not spoofed.) So i decided to DDoS their center, his reaction wasn’t funny because he was calm about it, here are the numbers:
(720) 574-7991
(912) 642-0894
(323) 521-2077
Call Center IP Address: 103.120.188.170

what remote connection software do they use

This one is still up, haveing fun with it? I am