What does this DM is received from Twitter mean?

[Lily]

I woke up this morning with this message from twitter:
NOTE: You reached your mobile provider's limit of 200 tweets received/day. DM's & sending Tweets not affected. Read tweets at m.twitter.com (resets in 10 hours).
What does that mean? Am I on tweet limit? If I am, what is it since I've never had it before?
I don't mean what does DM mean, I know what that means. I just don't understand the message.

[Henry Tran]

DM = Direct Message

I think there is a limit to DMs that you can do from your mobile phone. According to Twitter's help page:
"Direct Messages: 250 per day."

Maybe your provider doesn't want you to get near the 250 mark so they stop you at 200. Twitter has limits to "reduce downtime and error pages."

[IAmBored]

I'm not quite sure as I've never used mobile twitter, but i guess it means that in 24 hours you can only tweet 200 times and you have obviously exceeded this limit. Therefore you will be able to tweet again after 10 hours. I'm sure if you use your laptop or PC you'll be able to tweet.