eBay

I would like to filter out a seller from my search results. Can anyone tell me how this is done please?

When I am searching eBay for vintage items I am seeing ads for items advertised in "Condoms & Contraceptives". I have never searched for or purchased items from this area. Why are these ads being displayed and how can I turn them off?Thanks

I am about to bid on an item in the USA, I am in Australia. I know USPS has temporarily suspended post to Australia and I realise the GSP uses Pitney Bowes. My question is, if I buy an item where the seller specifies GSP shipping will it ship to Aust...