I remember years ago before mobile phones being charged ridiculous amounts for calls back to Australia. I queried 2. One I had made at let's say 2.15 and the length of call was listed as 5 minutes, then the next call was listed as started at 2.16. I questioned how I could possibly be making the second call 1 minute later than when I first dialled when I supposedly spoke for 5 minutes on the first call. They continued to play dumb and make out they had no idea what I was talking about. I just paid the amount. Wasn't worth the hassle of me complaining for half an hour. I just wanted to check out.