has anyone else received a mobile message saying it was 02 and number 2030?  Saying they are about to send me settings so I can use WAP and Prepay mms and asking me to save and activate them if asked.

Yes, I just received 3 messages, supposedly from 2030, at 04.30 in the mornng!:
#1 (Standard Text Message): "We're about to send you 2 textst containing settings so you can use Wap and Mms. Please save and activate them if asked."
#2 (Standard Text Message): "Your phone should now be set up. If you have any problems, try switching your handset off/on. If you need to get settings again, text ACTIVE to 2020."
#3 (Browser Message): "Update is Required."

If these are genuinely O2, the time of day and manner are suspicious. Also, a search of the Internet suggests this has been going on since 2008, rather than a single recent marketing campaign.

I suspect someone is phishing for mobile phone numbers.  In any case, texting messages to unknown numbers can result in charges, so I just DELETED THEM and did nothing, and would recommend the same.

It is strange that O2's own Website does not contain clear warnings about whether these are genuine or fake.

i too recieved the same messages this morning from "02" on the 2030 number

If you send "settings" or "active" to 2020 , o2 will just send you the settings to use their data and send mms all you need to do is install them , and they will reply via 2030 ,

If you are on giff gaff , its exactly the same proses just send "active" to 2030 , for some strange reason settings to 2030 doesn't work ??? Weird hey ? Tho depending on your sim they know which network you are using and will send accordingly

Received same message as others re 2030; I had just been checking phone out as no-one could ring me and I was not receiving texts.  Then, lo and behold, this text came through fine ... but on checking I still can't receive texts or calls from anyone else.  Very odd.  Anyway, deleted message .