I'm at Bottoms Up in Singapore https://t.co/VNjOq7H5e1
Central Region
[{'url': 'https://t.co/VNjOq7H5e1', 'expanded_url': 'https://www.swarmapp.com/c/hDowI7dVAPP', 'display_url': 'swarmapp.com/c/hDowI7dVAPP', 'indices': [31, 54]}]
CECIL
["i'm", 'bottom', 'singapore', 'https://t.co/vnjoq7h5e1']
['bottom', 'bottom']
bottoms singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance issues."},
    ]

It seems that the Twitter post "bottoms singapore" does not relate to a maintenance report feedback to public flat house. It is not clear what this post refers to, and it does not contain any information that would suggest it is related to public housing or maintenance issues. Therefore, the answer is that the post does not relate to this category.