does anyone know how to get around this?

So I have alot of generic 2-3 gems about to expire so I am ranking up some champions. When I finally got the iso and everything, I was able to rank them up but instead of the generic, it used my class based ones. Does anyone know how to get around this?
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Comments
They’ll likely tell you to:
use the class gem
contact them back after you’ve done so
Then theyll remove the generic from your inventory and restore the class gem.
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