The welcome offer is the first thing most users ask about, but the useful question is not only how much appears on the banner.

Reward pages become useful only when the wording is matched against the wallet, the task area, and the payment rules.
For Boss Rummy, treat signup bonus notes as separate layers: the banner, the wallet, and the trigger that turns the reward into something usable. A number on a headline is not the same as a reward that has already landed.
The safer habit is to read the visible reward notes, check whether the same wording exists in the bonus center, and only then decide whether the campaign fits the next step you want to take.
This is also where cash-table checks before the first hand matters, because table minimums, wallet fit, rule visibility, and the checks that matter before entering a real-money rummy table.
Current public wording around Boss Rummy also surfaces figures such as 5% extra. Treat those as live-page language until the same amount or condition appears inside the wallet or task view.
Move from the reward page into the payment and download pages before you take action.