STRIPE: Sofort, giropay, SEPA, 3D secure

Using a paid version I can activate Stripe, add all the keys for sandbox and productive mode but I do not get all payment methods enabled by Stripe / Germany.

Looking at the code in bup-stripe.js it seems the Stripe functionality has been limited to credit cards only. There is no recognizalble source code for ‘giropay’ or ‘SOFORT’ which are key on the german market alongside with PayPal and ‘SEPA Lastschrift’, the latter of which is supported by Stripe / Germany as well.
It looks like this (SOFORT in this case):

stripe.createSource({
  type: 'sofort',
  amount: 1099,
  currency: 'eur',
  redirect: {
    return_url: 'https://shop.example.com/crtA6B28E1',
  },
  sofort: {
    country: 'DE',
  },
}).then(function(result) {
  // handle result.error or result.source
});

Moreover I miss a 3D secure option for credit cards. The process for 3D Secure card payments begins in the same way as regular card payments with an integration first creating a Source object that represents the card information. Instead of using this source to make a charge request, it’s used to create a 3D Secure Source object, which – again – isn’t recognizable in your code, so I suppose 3D-secure has not been established yet.

Will European type payment methods be included soon? It would open a bigger market for you – with PayPal and card only your plugin won’t rank up in Europe in contrast to the U.S.. You definitely need the EU standard account draft method SEPA for all countries and then some nation-specific stuff like ‘giropay’ for Germany or ‘iDeal’ for the Netherlands, etc.
Also fraud protection for sellers is a must. Pleas add 3D secure soon.

Footnote: I received a support message by mail earlier:

“If those options are available for your country through Stripe then you should have any issues.
Actually, the plugin acts like an intermediary between your WordPress site and Stripe.
In few words, if those options are available on Stripe for your country you won’t have issues to integrate the plugin.”

That is not an adequate response and technically wrong as from what I can see from your code. The broad variety Stripe offers to customers obviously needs to be called from its Library as shown by the above code for “SOFORT”, however I am not developer enough to accomplish that.
As a paying customer I expect a little more dedication, because I HAVE issues and I need them resolved or another customer simply quits …

The page I need help with: [log in to see the link]