Q: iCloud got hacked?

Find my iPhone was activated and everything when it was stolen and it was even on LOST MODE with the numbers in front and the thief turned off the phone for a while but they'll turn it on once in a while all day yesterday, but today I got an email saying that someone resetted by pw and I of course freaked out and changed my PW ASAP but I noticed that they erased my stolen iPhone off of the Find my iPhone list.... and the phone seems to be off or on airplane mode since they will not pick up. I think the guy who stole it just sold it at the pawn shop and now professionals are trying to sell the stolen iPhone. I reported to the local police station and everything and luckily I got an email of every location they've been at when they turned on the phone but I was wondering if there was a solution to this? I've only had the phone for 3 months