It's absolutely unacceptable that a company like CS E-Infinity conducts transactions without issuing a proper invoice or receipt containing full financial details. This kind of negligence—or worse, deliberate avoidance—raises serious red flags about their transparency and accountability. Any legitimate business knows that providing customers with a detailed proof of purchase isn’t just a courtesy; it’s a legal and ethical obligation. Operating without it isn’t just shady—it undermines trust, invites scrutiny, and makes you wonder what else they’re trying to hide. If E-Infinity wants to be taken seriously, it needs to start acting like a real company, not a back-alley operation dodging the basics of professional conduct.