I have unlimited 8 meg broadband and I got a letter from Orange saying that I downloaded 61 GB in one month, and that their now going to monitor my usage for a while. I didn't think I downloaded that much, but maybe a few 700mb files during peak. I don't mind them monitoring my usage, as I've now stopped downloading in peak (6-12pm). But it's a joke, they've capped me down to 56k in peak time for 3 months!!
Okay, I work for an ISP and I do the legal work... (as well as tech support, as well as provisioning, I actually don't get paid for all these things, I'm just a corporate wh&re in the rat race but thats just my sob story :dapprove
Anyway restricting your bandwith for three months is over the top when you havn't even doubled the usage over a month.
The benchmark for the Fair Usage Policy is a 30gb limit by most ISP's and they usually have an extra 10gb flexibility (however this is being dismissed of late).
Although a package is Unlimited, it is only unlimited within the confides of a Fair Usage Policy. A contradiction in terms? Well that's capitalism, you have a straw, I have a straw etc.
If you do think you didn't download as much as is being claimed, then you can ask for a usage chart which tells you how much you downloaded and on which days.
If you find you are downloading dubious amounts and you weren't even home on the day, change the security on your router. Your neighbours maybe piggy-backing your router and using your bandwith.
(Personally I think 30gb is enough, I mean thats 1gb a day, thats a full AVI movie in DVDRIP and around 300mb for other stuff including browsing.)
Most ISP's have a Fair Usage Policy, some more active than others and some may have gone active recently but it will be in your terms and conditions.
Also, it is not only the bandwith ISP's are cracking down on, it's also the movies/games/music illegally being downloaded. This is due to the production companies actually tracing the downloaders, nothing to do with the ISP as I understand.
As far as cutting payments off and stopping your direct debits, I'd avoid it. The companies will follow up and take legal action, you will not have a leg to stand on in most cases, I deal with this everyday. They will ask for a cancellation fee (usually £60), remainder of the contract and the sickener... the original modem you were sent by the ISP no matter how crap it were.
Don't hate the player, hate game.