u/Fun-Course-295

Hi there, I have a flight from London to Auckland via Shanghai with China eastern next week and have managed to check my seat etc... but I noticed the all of the preferred seats that you pay for are mostly available, assuming this stays the same come next week's flight does anyone know if you're able to select them without a charge? Or will the check in staff allow you to be moved? Wouldn't mind a row to myself on such long flights haha

P.s I shouldn't have said premium I just mean economy but preferred seats