Dodgy bidder problem

I have a bidder on an expensive item, who sent me three messages last night regarding an item I had just sold - see photos below, (not sure if they are in right order). He/She has placed a bid on another jewellery item.  After reading his/her messages I looked  at bidder's profile and think he/she is going to be a problem.  Bidder told me in message that he/she was an intensive care nurse. But profile states - registered with eBay May 2019 and  has completed 487 transactions since, a lot of them being jewellery items, and many with feedback/buying/selling problems.   This doesn't sound to me like a critical care nurse.  I'm worried as to what will happen if this bidder wins auction as I will have to deal with any follow-up problems. Is there anyway I can remove this persons bids.

Thank you for any advise.  Messages below. I have removed name as I believe that to be eBays policy..

 

 

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Everything about those messages Screams SCAM.

 

Do as suggested Block this bidder and cancel all bids.

 

Better to be safe than sorry.

 

Your big mistake is your postage, Jewellery must be sent using Special Delivery otherwise it is not covered by RM. Scammers look for sellers showing lack of knowledge about postage methods, and think they will be an easy target for getting a freebie.

 

If you agreed to any of those "I will give you" offers the next thing would be a request for your Paypal Email address, so that a fake payment message could be sent to you.