I have been a victim of both telcos. I even made a complained to each of them including the DTI and NTC but no to avail and I have decided to disconnect my internet. Lately those scumbags sends me a demand letter and I responded through their money-making lawyers that I wasn't satisfied with their services. I have the right to choose if I'm not satisfied with the services they gave me and you can sue in court. I have subscribed a 1 mbps but it turns out to be 30 to 100 kbps.
What I did right now is to hack my neighbors pass key and I have 6 wifi connections for FREE.