@spec get_reminder_status(SetuClient.Config.t(), String.t()) ::
  {:ok, map()} | {:error, SetuClient.Error.t()}

Fetches the delivery and payment status of a sent reminder.

GET /v1/whatsapp/bills/{id}

@spec send_reminder(SetuClient.Config.t(), map()) ::
  {:ok, map()} | {:error, SetuClient.Error.t()}

Sends a WhatsApp bill payment reminder with an embedded payment link.

Required params

• :customer_mobile, :bill_amount (paise), :biller_bill_id

POST /v1/whatsapp/bills