All providers have limits. Even the ones that say there unlimited. Some are higher than others.
To stream an Internet or Netflix movie you need between 2-6 Megabites depending on size video. In rural areas you are stuck with what's available.

When calling CL ask for there Customer Retention operators. They can do more than the regular knuckle heads. Tell them your considering disconnecting. They don't like hearing that and are more apt to roll you into a special rate for data.

Just my 2 cents