Design
Skylink — Buy For Another Number Guide
One poster that answers the question support was answering all day.

The problem
Customers kept asking the same thing: how do I buy a bundle for someone else’s number? Every instance was answered by hand in chat, with the Paybill and account details retyped each time and mistyped often enough to cost transactions.
What I built
Designed a single-purpose instruction poster that puts the Paybill business number and the account-number rule in large, unmistakable blocks, with the once-a-day limit and the support line held below.
The outcome
Support stopped retyping the same instructions, and failed transactions from wrong account numbers dropped.