Just received this email from HostUS. It says the coupon is for customers, but seems to work when not logged in.
Today we are happy to let you know that you can order our first KVM offerings in Sydney, Australia, as well as in Singapore!
We are pleased to offer a 20% lifetime discount on all new KVM purchases until the end of September, valid for current customers.
KVM VPS services in Sydney and Singapore are powered by new AMD Ryzen 9 3900X CPUs, running at 3.8GHz base clock and can boost to 4GHz+. In addition to the fast CPU, all services are backed by NVMe SSD storage, providing excellent performance.