First, please head into the in-game store – sometimes cells will become “stuck” and heading into the store may fix this issue.
If your store says “there are no packs available” you may have an issue where your account/game/store regions are not matching. This causes what is known as a “SKU Mismatch” due to Playstation’s regional settings.
Unfortunately, the only way to resolve this will be to arrange a refund and look into ways of resolving this mismatch. As we do not process payments ourselves, we can’t provide this for you, nor are we able to manually credit you with cells.