Credits not reflected on billing statement

There was an outage in my area and I was without WiFi for 9 days. I was assured by two different Xfinity employees, one via chat and one via phone, that there would be a credit of $30 posted to my next statement. This was nearly a month ago, and still has not shown up. When I signed up for my plan I also saw two discounts advertised: one for $5 paperless billing and the other for $10 autopay. The autopay discount has also not been applied to my account. This is unacceptable. Does Xfinity just randomly give people "discounts" and then not follow through?