Thankyou all for your replies, most welcome.
I had a thought since I posted this yesterday, let me know what you think
I'm arriving from uk on the test & go and staying less than 30days, so if i put my girlfriends condo address on the 30day visa exempt form (TM6 i think it is) that I get on the plane and hand to immigration at BKK, then I arrive at my hotel for Day 1 Test & Go and again on Day 5 and they will notify immigration anyway..so would i be covered always that way ?