Sent a payment by bank transfer but guy ignores me?

I bought an iPhone 5s for 410 euro. I sent a bank transfer to the seller on Friday last and he told me it went to his account on Tuesday. He told me he missed the post on Tuesday and that he'll have it sent out Wednesday. He was very fast at replying up until Tuesday when he said he'll give me the tracking number on Wednesday afternoon. On the Wednesday when I messaged him asking for the tracing number he promised he replied saying he was working and his wife posted it earlier on. I sent him 3 messages since and each time I sent him a message it showed on his profile he came online.
Is there anything the police could do in tis situation or even the bank?
Should I message him saying if he doesn't help me sort out the situation I'm going to get the police involved?
Any help appreciated.

Did you buy through a site like ebay, or find him on Craigslist?

It's possible you have been scammed.

Sad to say, you may have been scammed.

Sounds like he either never had any intention of sending it to you, or something came up (maybe someone else offered more money for it), and he's now dodging you.

Sure, you can report it to the police, but especially if he's in another country, it may not do much good.

I'd go to your bank, though and talk to them. They may be able to track down the account that this person used, and ask his bank to freeze it.