Account issues

So i play primarily on the web app for pc, i have 2 accounts

A: Rokkie: 925865399

B: DarthRokkie: 876284197

I tried to play these at work on my tablet, now i have this problem where  Account 'B' loads when i login to account A on the pc app,

account 'B'  just says create new account when i login 

Account 'A' seems to just vanished into the abyss whereas B seemed to move over to A's login

I am as a loss now and need some help in fixing this problem, as i have invested alot of money into account A and really dont want to  just lose it

Account B also loads fine on the tablet as it did before i tried to login to Account A on it.

Thanks

Rokkie