Sentence 1: Gus tried making a call and was told he had no more minutes. 
 Sentence 3: Gus' provider told him he didn't have roaming on his phone 
 Sentence 4:  He paid a premium to get it enabled 
 Sentence 5:  Gus was able to make his important call 
 Option 1: He did not need to use his phone anymore though. 
 Option 2: He thought he was paying for the unlimited plan.