in league 2 not everyone can afford 2M for 24Q 18 yo player, chose time that the transfer end just before maintenance,very few people like to bid that moment,
but to ensure you and your subacc in the same sever, you need to invite your subaccount, and click the link in fb
i used sub account to farm $, buy free tranfer and sell them if nobody buy him, i bought him myself. with 25 token you probably have 5M $ 3 time better than buy.