Dear Wargaming,
You Royal Navy Event Rules, the link to which I now refer you:
https://worldofwarships.com/en/news/development/royal-navy/
Shows, in the sale items graphic (the really big one), the cost of the following:
Warspite: 220 COAL
Gallant: 200 COAL
Royal Navy Standard Container: 12 COAL
Bert (Burt?) Dunkirk: 100 COAL
Various signals: COAL, various amounts.
Don't believe me? Look:
Please correct the obvious errors in the Arsenal, and change the prices to the true intended amount shown in the rules, in coal.
That is all.
(Not holding my breath)