I was travelling in Spain last week and went to Gibraltar.
Everthing is fine except when I walk to south point of Gibraltar, Europa point.
Suddenly I found my Iphone 7 connectted to IAM carrier. I realized this is not Europe carrier and immediately close the data roaming, but still chargered 1 pound for several KBs data. IAM is Morocco Carrier and roaming is 1 pound per MB. I glad I did not open faceboook or other app, otherwise my pocket will be bloody.
I have no idea why Iphone connected to Morocco instead of Spain. From google map, the distance between Europa point and nearest Spain land is less than the distance between Europa point and nearest Morocco.
Stupid Apple cost me 1 pound.
Just warning anybody who are traveling Spain south coast and be warn your phone connect to Morocco.