
https://plarium.com/forum/en/throne-kingdom-at-war/598_general-questions/123846_is-this-a-super-pack--mega-pack-or-special-holiday-offer/?post=628576 may be topical on this. (High water marks for packs at these levels.)
WWO said:
'Summer sale' is probably a misnomer / just a package name. (Much like spring {Easter} lasted for many months.) You are probably ok. ...
Seems I am wrong about that. I see no 'Summer SALE' now. Seems it was a sale (limited time offer), after all.
The content level amounts were not unusual, so it was not a mega or super pack. Levels and prices and packs were consistent with these periodic offerings, nothing unusual, and content levels reflected where you are in the purchase cycle. e.g. < ~150 / US$4.99
Sad that Plarium did not say here that the sale packs were indeed sales and limited time offers. Wonder how much revenue they lost as a result.
I answered substantively, but it appears that answer is now lost.
'Summer sale' is probably a misnomer / just a package name. (Much like spring {Easter} lasted for many months.) You are probably ok.
Note that packages rotate is various fashions, so it may be gone one day, and reappear the next or the day after.