Request bill payment and if merchant decline payment till merchant still able to use App further

[KapilAnncode]

app.get( shopify.config.auth.callbackPath, shopify.auth.callback(), // Request payment if required async (req, res, next) => { const session = res.locals.shopify.session; console.log("session: ", session); const hasPayment = await shopify.api.billing.check({ session, plans: ['My App Charge', "Multiple LineItems Plan", "Starter"], // plans: ['My App Charge', 'Starter'], isTest: true, });

console.log("hasPayment: ", hasPayment);
if (hasPayment) {      
  next();
} else {
  res.redirect(
    await shopify.api.billing.request({
      session,
      plan: 'Starter',
      isTest: true,
    }),
  );
}

}, // Load the app otherwise shopify.redirectToShopifyOrAppRoot(), );

I tried to implement app billing at the time of app installation for app billing and if the merchant declined merchant still able to use the application but It shouldn't .