I have paid the 3.99 upgrade but it does'nt let me pick up items. It tells me to pay the upgrade again.....

Hello, I purchased Piratewalla about 7 months ago and pàid for the .79 cent upgrade about 1 month ago. When I tried to pick up items I received a message saying that I had to pay the upgrade again. This happened for about a week, so I decided to not use it. Now it asked me for  the 3.99 upgrade which I paid, but it does'nt let me pick up items. It tells me to pay the upgrade again.....