Let me go all of this again and if it's the case, I'll ask someone on MSquad to help you with your issue.

So, at first you said you bought a Left hand trail texture but the only thing I could find in your Transaction history is that you bought a Right hand trail texture which is in your inventory and you noticed right?
Then you said that you owned a Left hand trail texture before and that you can't find it. The thing is, I've looked through your whole Transaction history and based on it, you never got a Left hand trail texture from anywhere, it didn't get in and didn't get out.

Are you sure that you owned that?