Singh had previously been convicted of electoral fraud for registering ineligible voters in Auckland's first Super City elections.
The complaints against Singh, which were unrelated to the electoral fraud, were initially upheld because he did not provide his client with invoices, updates and other written documentation.
The tribunal said that it had seen multiple cases of dishonest practices in which money changed hands in a migrant's home country, which made this complaint plausible.
Ministry of Business, Innovation and Employment prosecutor Shona Carr accepted that based on new banking records produced by Singh, there was no direct evidence he had received any payments.