Gentlemen,
I suspect there was some concatenation of the man's contact info. I don't use WhatsApp, so I can only guess the App is used via a very-phone number looking account,.since it may have been registered to a phone at creation time.
It most likely needs to be broken out like so:
francogarzonio@bwavio.com
www.bwavio.commobile +39 348.4632252
WhatsApp +39 351.9294883
BWavio.com is the domain name.
BW@BWavio.com may be the owner, or website admin, since it is displayed on the website above.
I suspect Mr.Franco Garzonio is an employee, so I would respond to the email address as I broke it out above, first.
39 is the country code for Italy, and is required for International dialing. The plus symbol is the indicator that this is a country code, followed by 3-digit area code, followed by 3-digit exchange (or metro area) code, followed by local extension. European numbers are typically dialed using all ten digits within the country.
This is why we see 01 (well, really just "1") since we are within our own country) in front of domestic long distance calls. If you ever travel Internationally, you dial the 01 to reach USA phone numbers.
Since the cut files are proprietary to the designer, and his cutting machine, it may be generous of the designer to convert the code back to PDF for "export." Of course, this exposes the plansheet to obvious regeneration back to cut files by a skilled AutoCad guy. But at least our Italian "friend" can begin with just the PDF and hand-cut at a minimum.
Just my 2¢ for the sake of attempted clarification.