What nobody tells you about mobile contracts

Ask around and you will get a different answer every time, so here is the short version.

What actually changed

The exceptions matter more than the rule, and there are three of them. Most of the confusion comes from two terms that sound alike and mean different things.

What it costs

There is a deadline involved, and missing it costs more than the difference. The exceptions matter more than the rule, and there are three of them.

Whatever you decide, write down why. The reasoning is the part you forget.