I'm on L1 from company A, and applied to H1 COS from 2 companies B & C. Company B's H1 COS is approved and will begin from 1st Oct b'coz it was processed with premium. Company C's application is not even moving. If I join company B and then if C's approves, will I have to join C due to last action rule? Or shall I ask C to withdraw my application?