Hi Khun Ralf,
I am sincerely sorry about the noise from 19th Floor.
Yesterday, we did laminate table top installation at 1904-1907 and all finish already.
Regarding the front desk requested deposit when guest check in. Normally Front Desk Talent will request credit card for guarantee indicate expenses (mini bar, laundry service, etc) with amount THB 3,000.-. However, our Front Desk Talent did error to hold 900 USD on your credit card. I already informed Front Desk talent to cancel the guarantee indicate expenses.