When does my Straight Talk Uncap your 3G speeds?

Hello sorry about the vague question but I have only had Straight Talk for about a month and I want to know when they stop capping your data? What I mean is I wet over my 2GB limit on 3G using my iPhone 4 last month and it says it only allows 2GB of full 3G speeds but that month is already over and it still capping my data? Why? Any help would be good! I just want to know how I could get my full 3G speeds back!

I have 5GB on straight talk, and they never cap me.
call em up and ask

  • What straight talk phone holds text messages like a conversation like an iphone does? I really want a phone that can hold conversations so I don't have to keep deleting messages. I use straight talk from walmart.
  • What does 250MB at 4G Speeds mean using Simple Mobile? I plan on activating my iPhone with Simple Mobile. Their data plan say Unlimited. I would like to know what does 250MB at 4G Speed mean? I don't get it. Please explain.
  • What are Straight Talk's data speeds? I have bought an unlocked iPhone 5, and I was about to buy the Straight Talk sim, but then I realized that I didn't know their data speeds. I was surprised to learn that NOWHERE do they post their data speeds. I emailed them a week ago, and because of the half-baked customer service, they haven't replied. Anyway, does anyone know what their data speeds are, or at least have experience with them?
  • To use an AT&T iPhone 4S with straight talk, does it need to be unlocked? I'm going to switch my iPhone 4S over from AT&T to straight talk. I'm unsure wether the phone needs to be unlocked or not. Some blogs say it doesn't, some suggest it. I've had mixed answers from straight talk reps. I don't know what to think! Does it need to be unlocked or not to use the phone with straight talk?