Conditions of I care changed after purchasing it...

I purchased an iPhone at VODA WORLD Istore. I was told I should also purchase an icare to cover my device from any damage should my device get damaged it will be replaced with the same device,my icare is expiring on the 07/08/2018. 2 weeks ago I handed my device in at Voda World istore, it had a cracked screen, when i dropped it off I was also told that I will get a new one, a week later I received an email to come and collect it, when I got there I found that the device has been repaired, I asked why am I not getting a new one as per what I was told when I purchased the icare, one of the staff member told me that at the time when I bought the icare they were unable to repair screens, now they are able to repair,So does this mean I was mislead, I was **** to, was this a false marketing, now that I am claiming the conditions of the icare all of a sudden have changed? What ever changes made in their policy should not affect the existing customers, their policy of not replacing came after I had purchased my icare therefore what ever changed should apply to the new customers not old ones, I expect my device to be replaced not repaired. This is ****************, it should be stopped. I wrote them an email I will wait for their feedback.