POE2 - "Abyssal Lightning Bolt Effect‌" not applied to "Lightning Bolt" from "Choir of the Storm".

how can i get a refund ?

Have the same issue, was sceptical about buying it, cause didn't see it in my MTX kist as possible skill gems. But as you don't have any other lightning bolts - besides amulet and staff, decided to buy. Same as previous repliers - doesn't work.

Are there any updates on that?

Same here! 1,5 month later and they stil didn't change anything. Not even a warning when you buy the MTX for Lightning Bolt. This is such a shame. I support GGG because I love their games but this is some wasted money.