Hi! I'm offering refunding services for in-app purchases (iOS), I've been doing it for a while and can do this in different languages ^^
I can guarantee a Succesful refund if the item purchased is in my comfort zone (Most of them are). Once it's refunded the money will go back to your balance in 24-48 hours, keep in mind that the email conversation between the Apple assigned to review the refund may take days (Not my fault those apple bastards take so long to respond emails).
Price: 10 credits per refund.
It's totally negotiable tho so feel free to PM if interested.