react native iap not providing the subscription information

I am handling the buy subscription with this function

const handleBuySubscription = async (productId) => {

    try {

      await requestSubscription({

        sku: productId,

      });

      setLoading(false);

    } catch (error) {

      setLoading(false);

      if (error instanceof PurchaseError) {

        errorLog({ message: `[${error.code}]: ${error.message}`, error });

      } else {

        errorLog({ message: "handleBuySubscription", error });

      }

    }

  };

but the

requestSubscription({

        sku: productId,

      })

does not return anything, and it is stuck at await