When you fill in tm47 it asks for your address in Thailand, I've never been asked for a tm30 extending my tourist visa in phangna or surathani immigration
I,ve never had any issues with tourist visa return ticket booked for over the 60 day stay.in my experience its always depends on the staff at counters and immigration.
I got my 60 day tourist visa approved today after 4 days of submitting here in the UK.the only issue I had was they wouldn't accept my visa debit card for payment but accepted my visa credit card,maybe an issue on my side ,just wondering if anybody else had same issue.