Problem with trying to upgrade to premium

[stzoakhaarlmee 0]

Hi, I have paid my money, but it keeps telling me that "There was a problem processing your purchase." I even got a subscription confirmation email, but nothing is happening. I'm in a quite urgent situation because I have accidentally erased one of my important notes and I can only revert it to an earlier version through a premium feature.

[CalS 5,277]