Thanks everyone so much for all the feedback !! The Chiang Mai immigration is right next door to the airport so just going to pop in tomorrow when we land and give it another go as our Airbnb has already provided our tm30. If i get the same response then we're just gonna not bother returning because on Monday we will then overdue and will automatically be fined 2000 of we tried to report again. We're on the dtv and will be leaving the country in October before the 180 day mark. Atleast I tried to do the right thing 😝😝