Does this question decide a band on its own?

No. It is one of eighteen, each counting once, and a band is the count of the ones a book leaves unanswered. The rule is set out in full here.

Is the year it started trading established?

A founding year that survives checking. Several brands in this market circulate a Ghana entry year that predates the parent company, and one record carries no year at all rather than repeat one.

What a silence costs. Longevity is the cheapest thing to claim and the easiest to check.

12answer it

1say nothing

0are not asked

Twelve books answer it, and this is what with

1xBet since 2007 IV Tier
22Bet since 2017 IV Tier
Bangbet since 2018 III Tier
BetFox since 2021 I Tier
betPawa since 2014 II Tier
Betway since 2006 III Tier
Betwinner since 2018 IV Tier
Melbet since 2012 IV Tier
MSport since 2019 III Tier
Premier Bet since 2013 I Tier
Soccabet since 2015 III Tier
SportyBet since 2013 III Tier

One book say nothing at all

Wiwi Casino Leaves 2 of 18 unanswered in total. II Tier

Questions this raises

What counts as an answer here?: A founding year that survives checking. Several brands in this market circulate a Ghana entry year that predates the parent company, and one record carries no year at all rather than repeat one.
What does a silence cost a reader?: Longevity is the cheapest thing to claim and the easiest to check.
Does this question decide a band on its own?: No. It is one of eighteen, each counting once, and a band is the count of the ones a book leaves unanswered. The rule is set out in full here.