Bought a Subscription for Adobe Acrobat Premium—Not Accessible

Hi everyone, 

I purchased a monthly Adobe Acrobat Premium subscription. I was charged (I checked and it says my subscription will renew again in one month). But I try to actually using it and it tells me I don't have a subscription. It says I bought it under another Apple ID (I absolutely did not...and my App store confirms I have the subscription). I tried to Restore Purchases and it says "Unable to Restore: This item was purchased by a different Apple ID. Sign in with that Apple ID and try again." It's not the wrong Apple ID. I only have one which tells me I've been charged on my subscription. I've signed in and out multiple times and it's STILL not working. So I don't know what to do. I've paid for it and it doesn't work. So how do I fix it? Or how do I get a refund? Please help.