eBay

I mailed the item and is on its way to the buyer. But I inadvertently pressed the not mailed yet and now I have red messaging stating I am late in mailing the item and it keeps on showing as if I did not send the item.How can I remove the mistake of ...

I just received a msg form a buyer who stated her 5 year old son made 2 bids on my items. How can I remove her bid?