RSForm Pro does not have a method to create multiple payment methods from a single RSForm Pro payment plugin. So the default cciDEAL integration plugin for RSForm Pro will automatically try to show all RSForm Pro does not have a method to create multiple payment methods from a single RSForm Pro payment plugin. So the default cciDEAL integration plugin for RSForm Pro will automatically try to show all payment methods that an iDEAL account (like Mollie) supports.  

Adding iDEAL and MisterCash to RSForm Pro:
http://www.chillcreations.com/manuals/ccideal-platform/290-adding-ideal-to-rsform-pro#adding-mistercash-as-a-separate-payment-method

More about cciDEAL:
http://www.chillcreations.com/joomla-extensions/ccideal-platform-ideal-for-joomla