I had the same problem and mentioned it more then 3 weeks ago. Very annoying thats its not fixed yet.
https://bitcointalksearch.org/topic/m.54965035
And also, how do we bet on 1st half, 1st quarters for basketball?
Thanks for bringing this to our attention.
Unfortunately this is a known "kind of issue", when the bet fails (in this case due to current exposure for any of the selections being already reached), the whole betslip is cleared and there is no precise output regarding of which selections caused it.
We are working on this, and will make a followup reply as soon as there are improvements on this topic.
Meanwhile, we appreciate your patience while we work on this.
We have changed a few things at our side, and from now on you will have a smarter error message, that will let you know exactly why your Parlay failed instead of the previous "Line Suspended"
Do you have the same margin on all sports or is it different ? How much is it ?