I was part way through the month plan and though what a great deal this 1/2 price offer is, so swapped.
Silly me - I assumed that the current combo would finish and the new one would then start,
But no - the 30 days network access for free minutes resets and I lost a week to use my minutes in.
My minutes rolled over but since I'm a low user who will have trouble getting through the 500 minutes I now have that was neither here nor there to me
Grrr - not major but annoying - Skinny can do do something about this so combo changes come into effect upon renewal dates, not immediately?
At least make it clear on you website what happens.
So the lesson here is change you combos on the last day of your plan.