Last renewal I had (Phuket in April) they gave me a lot of grief over my TM30. I had not gone abroad or even an overnight stay away in a hotel.
As a result, I had to return and get all new documents including a newly completed TM30 form.
I am aware that, at the time, they were targeting to ensure people were staying where they said they were, but I had been in the house 4 years and never had issues previously.
It was very frustrating but I was able to obtain all documentation from my landlords and complete my renewal on the same day.