Banking activity, being subject to multiple risks and externalities, is heavily regulated and supervised. Banking supervision includes five key areas – conduct regulation, anti-money laundering, infrastructure, micro- and macroprudential regulation. The first area is one of the most important because focuses on how banks operate and behave towards their customers which affects confidence in the financial system and the fair, orderly and efficient functioning of financial markets. The lack of customer satisfaction, correlated with the decrease in confidence in the banks' ability to provide its services, can generate deposit flight and cause liquidity problems for financial institutions. Thus, increasing customer satisfaction with the quality of banking services can contribute to increasing the efficiency of macroprudential policy instruments, but it is also the inverse relationship - the stability of the financial system will condition the possibility of orienting banks towards diversifying services and increasing their quality. But, unfortunately, this area is not researched enough, although it is very important for the stability of the banking system. The research theme that is proposed will be developed through the analysis of specialized literature, the identification of influencing factors on customer satisfaction and the impact of the application of macroprudential tools on it. The conclusions will be drawn from the analysis of the level of satisfaction of clients of banks in the Republic of Moldova with payment services and its correlation with the application of BASEL III requirements.