'AT&T may reduce your data throughput speeds at any time or place if your data usage exceeds an applicable, identified usage threshold during any billing cycle. AT&T will provide you with advance notice of the usage threshold applicable to your data plan, or any changes to the applicable usage threshold either by a bill insert, email, text message or other appropriate means;'
'Unlimited Data Customers. If you are a grandfathered AT&T unlimited plan data service customer, you agree that “unlimited” means you pay a fixed monthly charge for wireless data service regardless of how much data you use. You further agree that “unlimited” does not mean that you can use AT&T’s wireless data service in any way that you choose or for any prohibited activities, and that if you use your unlimited data plan in any manner that is prohibited, AT&T can limit, restrict, suspend or terminate your data service or switch you to a tiered data plan.'