Roam Beyond overcharges

For the last 5 months both my wife and I have been overcharged while travelling the caribbean.

Our plans should include local calls. For instance, if we are in Grenada, we can call Grenada.

However, we frequently discover on our bills that Freedom shows calls are originating from Jamaica or another country that we are not in, to the country that we are in. These charges have been up to $100 per bill.

We have had to phone freedom every month to have this corrected. We have dealt with being called liars and have been told we aren't using our phones properly...

Has anyone else had this problem or am I taking crazy pills?