As my discussion with Khun Kai, supplier can come to change all 13 rooms and suppose to finish within 4 days. As they’re expected to remove wall paper all in 1 day then paint 1 day and leave 1 day and the last way will be replace new wall paper.
Jan & Feb may not suitable to do 13 rooms at the same time. I would ask Khun Kai to postpone to Mar or Apr at this state.
Anyway, we’ll conclude again later.
Should you have any further information, please do not hesitate to contact me.