Stop using one. It doesn't matter which one you DO use. It should be possible to sign in to the mobile account from the PC and then stop using the other PC account. PCs are easier about that than mobile systems. Tell us which one you want to keep and we can ban the other one. BUT if we just permanently ban the account, that doesn't delete old posts and you can still review them or reference them. They would remain visible.
Unfortunately, as a moderator, I don't know of a trick to merge accounts. I can move posts to another topic; I can delete posts; I can lock threads from further updates... but I don't know how to move the posts from one account into another account. Perhaps our site owner
@Jon or administrator
@Dave knows a simple way. However, one other part of this is to just stop using the account that you don't want to use any more and start posting exclusively from the other one. Once you do that, i.e. make the choice of which one to stop using, we can do whatever is needed/possible on our end.
