That's great to hear! In the case you have a new brand that you would also like to integrate with Laybuy as a payment option, we would recommend to send through a new application form to ensure we have the correct details to create your account.
As the API Key and ID on your current merchant account will be specifically tailored to your current website i.e name, url, currency type. It is best to establish a new Merchant account to avoid confusion for your customers. This will also keep your reporting clean, and seperate from each other.
Multiple user accounts can be set-up per account, if you have multiple branches that will require access to your merchant dashboard. For further information on our user accounts, please see the FAQ article here.