Gold transfer to wrong character.

I just bought gold with coins from the website of Warmane but accidentally send it to the wrong character with a close name to the one i wanted to actually send it to. I haven't picked it up from the mailbox yet so its technically still movable right ? The problem is the character i send it to is horde, but the one that i actually need the gold on is alliance. My question is can you help me transfer the gold to the alliance character from my horde character? Thank you in advance and stay safe <3