How cheap is this IEPL airport, is it real?

admin

I saw that they advertised at many places, and the small cup was
Ordinary
¥10 / monthly payment
- Monthly data: 100GB/month
- Stable IP link
- Excellent media unlock
- OuO Emby available
- No speed limit
- Normal rate: 1x
- Reduced rate: 0.8x
- Reduced period: 9:00 - 11:00 (UTC+8)

Mainly I saw there were long-term 60% off coupons, which means it's only 6 yuan for 100GB? How can this be so cheap, is there any trick?