Tenant looking for advice on condo rented.

I signed a 1 year contract in English with a European owner, through a local agent, 12 days ago.

The hot tub on the balcony was said to be working, but at the time of showing it didn't have water in it.

Shortly thereafter, the maintenance technician filled the tub and demonstrated the jets working; but with cold water only! He said the heater did not work and that I should use it as a cold tub.

I shared my opinion that would defeat the purpose of a hot tub, and requested the repair or removal of the tub. It's taking up most of the real estate on the balcony and harbors pigeons that left dung, egg shells and debris underneath. They said they would look into it..

It appears the owner and the maintenance people have ignored my follow-up Line App. I understand I need to be patient in Thailand but I don't want to be the chump later, either.

I paid my rent and deposits in good faith. Is it too much to ask for a follow up!

In the States we would use a rent board, a lawyer letter or small claims court to handle these small situations.

Now TIT, so anyone experienced on the correct way to handle this here?