Didn't get my ip from the last 3 games

I had 6180 ip. I did 3 arams to get ip to buy ivern. I had like 6315 ip and i went in the store. They told me i didn't have enough ip so i closed the client and restarted it. When i connected, i had 6180 ip, so i didn't get my ip from the last 3 games in aram.