I need a little help from a UK, German, Greek or Israel member.

"the website only takes messages from the UK Germany, Israel and Greece."

I'm sorry, but despite the fact that the website looks legit, one has to at least wonder why any website that's main function is to sell stuff, would only allow you to contact them if you are based in 4 random locations.

Surely there are other options available.

“I went on the website and in 10 seconds I could contact any seller via whatsapp. No such phone number required”.

For me when I clicked on the ad it came up with

“call #xxxxxxxxx”  when you click on that,  a drop down menus appears with only those countries I have listed with no manual input option  

I didn’t see the WhatsApp option. I will have another look. Thanks for this.

I tried the What’s app and still got stone walled at the phone number drop down menu wanting a phone number. The problem is it automatically puts in the area code for that country. With no option to change it.
 

 never got any message like that, I just clicked message to sender and it got sent.

Unfortunately now I am on the hook to buy a Porsche 911 as I received a response. :)

I guess I will keep digging. Thanks for the reply. 
I hope enjoy your new 911.  I have one and love it😁