sell it for bitcoin, transfer bitcoin to bittrex and buy lisk there and send. Bittrex has had no issues sending Lisk to us all day.
but you will probably lose some value in the process.
but it is another option.
once the transaction is done, i would recommend to make then a customer service to recalculate the bonus or extend the period, because of technical problems - not thinking about conspiracy. otherwise you would get bad promotion at the beginning as a tech developer. maybe its fault of poloniex, what i understand, you cant do anything about it.
Polo and Bittrex withdrawals are out of ours hands so everyone should contact their support, but if your TX is recorded on a LISK blockchain you will certainly get 120% bonus (before first 24h are up).