Cancellation request completely ignored

I requested a certain number of my lines to be cancelled as I no longer have any use for them last week Wednesday. The best that they can do is send me a no-reply email indicating that they will respond within 48 hours. Its Monday and still no response up until now. Its so funny how they bend over back wards to get you to buy something or contract a new line but couldn't give two hoots when you want to leave. Poorest customer service ever. I am not impressed. All you want to do is eat money with no benefit to the consumer! Its disgusting. I regret having contracted with you in the first place. Get someone to respond to my request-I am no longer interested in your poor service and customer offering