I got charged for taking the 30 day free trial for realms in Mcpe

So I decided to try realms because it said "Try realms for free for 30 days". Then when I did, it still  charged me 375.85 PHP (About 8 $). When it did, I thought I got 2 months of realms because of what happened. But I didn't, which is super frustrating. I hope there is a way to fix this bug and I hope I can get my money back.