Family Plan question

I currently have a T-Mobile Family Plan (+ Myfaves). Here is the problem
I Have 4 lines (1 for my wife, 1 for me, 1 for the in-laws and 1 for the sister-in-law)

Now the last 2 people have the tendency to pay late (after bill is due) is there a plan or way to say okay i pay the first two lines and the other 2 lines get cut (until payment for those lines are in)

Or am I pretty much stuck to calling them day in, day out (like a collection agency) until they budge?

ps. I have thought about cutting there lines but that is $400 dollars for both lines I don't really have that kind of money.

Change of responsibility if its that huge of a deal do that or get somebody to take over those lines. I forgot the website.

A website for what?

What about the feature that allows you to allocate the number of minutes per phone?  How often can you change that.  Could you allocate zero minutes until the bill is paid?

Yeah, you can get Family Allowances and set available minutes for each line independently. I had a vicious ex who still had the phone when we separated. After she burned over her 500 anytime mins, (and yes, we did have mobile to mobile and myFaves at the time) it wouldn't let her make calls--and I didn't get any overages on my bill!

Incidentally, if you have issues with overages, Family Allowances could be used to put cutoffs on every line, so no one could slip over. You can also set up "allowed" numbers even after the anytime minutes are used (i.e.: numbers you know are T-Mobile or myFaves), so you wouldn't necessarily have your phone effectively bricked till the end of the cycle.

And you can change it at any time. Once I had the phone back she kept trying to burn through my half of the mins to make my phone shut off, but I just logged on and rolled 0 on her line and all mins on mine. Very effective tool, too bad they raised the price to $4.99 a month instead of the $2 I was paying when I dropped it after rolling to Unlimited Loyalty. Unlimited or not, someday my daughter will have a phone and probably need times set up she can and can't use the phone!

I have that too and use that but the problem is when time comes the bill needs to be payed and it's overdue, they cut all lines so than the Family Allowence doesn't matter anymore.

I guess the questions is whether or not you can stand the pain until they pay up.  My thought was when the payment is due, if they haven't ante'd up, you change their allocated minutes to zero until they pay.  Of course they are family, so there could be some real problems there as well. This strategy may work better with roommates and friends (or possibly soon to be ex-friends).

I decided, I'll save up some money and just cut there lines. One of them already has another plan with T-Mobile and one of them lives in Houston so It's not like I can drive over there and get the money. Kind of sad to have family (in laws) like that. I do not feel I should have to depend on them.