@Bobby *******
, maybe you have TM30 or proof of staying based on a long-term contract. Or you are staying in the same place from the previous year. Bangkok doesn't ask often for a lease if you are staying in the same place from last year. I know some other cases who weren't asked for the lease, only the TM30 receipt when they have been in the same place for years.
Still, I guess it depends on many other conditions even in the same Bangkok.