I keep getting below messages when trying to contact ebay.com.au via chat :

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"Sorry, I'm having trouble connecting you with an agent. Please try again later."

OR

"Something went wrong. Please try again later. You can also get more info searching online help."
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I'm travelling overseas currently and need to talk to ebay asap as I just realised my ebay plus membership was automatically renewed 2 weeks ago and would like to get it canceled.

Tried to use the call back option. But I'm currently not in any of the countries in the list for calling back.

Any advise will be highly appreciated and many thanks in advance.