Forever!! As ebay does not give power ship to anyone anymore. And I don't think they will. I had had over 200 sales + a lakh in amount yet they have not provided . Powership to me . It's business related problem that's why they no longer give shipping services. All the older seller who had powership still do
But no new seller 1-10 months ago will get powership. And it's no going to change ever . So best of luck sending your item through speed Post and messaging buyer to confirm the order which they never will.