Can anyone please advise me asap of the best option when going overseas ? I'm leaving at short notice and I've got a contract with Optus, so not PAYG. I'm asking as right now the whole Optus system is down...no on-line chat, no working links, can't buy anything, no staff to answer phone inquiries, nothing. Even the customer service guy at my local Optus retailer said 'Optus is $%^& for overseas". I'll be off to Vodafone when this is over I can tell you.