I have enrolled with autopay using my debit Card so that discount would be applied to my bill. But for several months I have never seen the discount applied to the monthly bill. When I contacted the customer services I was informed that my payment method is registered as credit card and I am not able to get the discount. This look a scam to avoid applying the discount to the bill. I have been paying using my Debit card for several years.
Now I was informed that the complaint will be sent to the accounting department. And I am still waiting for response.