Will I get banned for this

So I am one of the ppl who was forced to move from EUC to EUW because of the wait times.

I paid for the gold founders pack and hit level 50 on EUC before switching. I also spent some of the Royal crystals I got as part of the gold founders pack. I bought the level 50 welcome pack.

I now have a ton of blue crystals on EUC which I can’t use. And also other skins and items which I will never use.

Can I sell these on EUC… For gold/crystals/cash shop items on EUW?

Don’t want to see 2500 crystals go to waste…

I see no reason they would ban you for that since ive seen something similar as a legit method for getting gold from alts.