Changi空港のeTRS消費税払い戻しシステムがムッチャ便利！！
パスポート入れて、Alipayコードかざして、完了！
他にもクレカや現金の支払い方法があるが、Alipayにするとすぐ戻ってくれるのはありがたい。
LINEPAYも対応して欲しい😭😭😭 https://t.co/0OhKss3nOc
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Singapore Changi Airport (SIN)
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CHANGI AIRPORT
changi etrs alipay alipay linepay
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    {"relatedness": False, "type": "none", "explanation": "This post does not relate to a maintenance report feedback for a public flat house."},
    ]

It seems that the post you provided does not contain any information related to a maintenance report feedback for a public flat house. The words "changi" and "alipay" do not seem to be related to maintenance or public housing, and "alipay linepay" is not a valid term. Therefore, the answer is that the post does not relate to a maintenance report feedback for a public flat house.