Purchase of Ad Free on Word with Friends game

I purchased a year or so ago a subscription for an Ad Free Word with Friend game, but for some reason it disappeared from my iphone along with all the games I had played

I decided I had better buy it again, and then no sooner had I done that when my iphone reverted back to

to my original games which were ad free. I have no idea why I had lost all the games and after signing in with Face Book it came back to my original games.

I feel I have wasted my money by repurchasing, and wondered if I could be reimbursed my $15.99