One of BaFin's tasks is to look after the protection of all consumers when supervising banks and financial service providers, private insurers and securities trading. Therefore, you can address your concern to BaFin if you believe that a supervised company has violated laws and you want to complain about it as a customer. You can file a complaint if a bank Unlawfully refuses to open a basic account for you. fails to comply with its obligation to help you switch accounts. makes an unreasonable charge for a basic account. unlawfully terminates your basic account. Opening a basic account: Since the introduction of the Payment Accounts Act (ZKG) 2016, all consumers legally residing in the European Union are entitled to a basic account. If you have submitted your application for a basic account, the bank must inform you in writing within 10 days that it does not wish to open a basic account for you. If the bank has rejected your application to open a basic account, you can apply to the BaFin for administrative proceedings. BaFin then checks whether the bank was allowed to reject your application - which is only permitted under certain conditions. This is the case if: you already have a payment account with another bank in Germany and you can actually use this account, you have been convicted of an intentional criminal offence against the bank or one of its employees or one of its customers within the 3 years preceding the date of application, you already had a basic account with the same bank and the bank has justifiably terminated the basic account agreement due to default in payment or due to use of the account for prohibited purposes, or the bank, by entering into and maintaining a business relationship with you, would be in breach of its general duties of care under the Money Laundering Act and the German Banking Act or, in justifying the refusal, would be in breach of its duties of confidentiality. If there are no statutory grounds for refusal, BaFin will order the bank to open the account. Account switching: The ZKG also obliges institutions to make it easier for you to switch accounts. Upon your request, the previous provider must transfer the standing orders and other services to the new provider. If the financial service providers do not comply with their obligation to provide statutory account switching assistance, you can report this to BaFin. It investigates corresponding complaints and works to ensure that identified deficiencies are remedied. Fee demand: You can also file a complaint with BaFin in the event of an unreasonable fee demand. Since the legislator has not set a maximum limit for the costs of a basic account, the prices for a basic account vary greatly. According to the ZKG, 2 criteria in particular must be taken into account when assessing the appropriateness of a basic account: the fees customary in the market and user behaviour. If BaFin determines that the pricing is unreasonable, it can order a bank to adjust its fee model for basic accounts to the requirements of the ZKG.