Not only Muslims violate charity commission rules, intentionally or unintentionally
In The Name of Allah, The Most Merciful, The Bestower of Mercy.
Allah, The Exalted, said:
يَـٰٓأَيُّہَا ٱلَّذِينَ ءَامَنُواْ كُونُواْ قَوَّٲمِينَ بِٱلۡقِسۡطِ شُہَدَآءَ لِلَّهِ وَلَوۡ عَلَىٰٓ أَنفُسِكُمۡ أَوِ ٱلۡوَٲلِدَيۡنِ وَٱلۡأَقۡرَبِينَۚ إِن يَكُنۡ غَنِيًّا أَوۡ فَقِيرً۬ا فَٱللَّهُ أَوۡلَىٰ بِہِمَاۖ فَلَا تَتَّبِعُواْ ٱلۡهَوَىٰٓ أَن تَعۡدِلُواْۚ وَإِن تَلۡوُ ۥۤاْ أَوۡ تُعۡرِضُواْ فَإِنَّ ٱللَّهَ كَانَ بِمَا تَعۡمَلُونَ خَبِيرً۬ا
O you who believe! Stand out firmly for justice, as witnesses to Allah; even though it be against yourselves, or your parents, or your kin, be he rich or poor, Allah is a Better Protector to both (than you). So follow not the lusts (of your hearts), lest you may avoid justice, and if you distort your witness or refuse to give it, verily, Allah is Ever Well-Acquainted with what you do. [An-Nisaa. 135]
Allah, The Exalted, said:
وَإِذَا قُلۡتُمۡ فَٱعۡدِلُواْ وَلَوۡ ڪَانَ ذَا قُرۡبَىٰۖ
And when you testify, be just, even if (it concerns) a near relative.
When you testify by way of a statement to judge between people, differentiate between them in a discourse, and speak regarding matters and circumstances, be just in your speech, adhere to truthfulness regarding those you love and those you hate, be fair and do not conceal what needs to be made clear because it is forbidden and tantamount to injustice to divert (from justice and fairness) when speaking against the one you hate. [An Excerpt from Tafseer as-Sadi]
Read below:
https://www.jpost.com/diaspora/article-837000