ok, so I was having the same problem as others, where the tickets were showing in the Order history but with a balance due and nowhere to pay for them.
I tried this and it worked:
1. Used my PC
2. Used Microsoft Edge instead of Chrome
3. Log into account on GrizTix
4. Click on Season renewal
5. Takes you to the FCS playoff tickets
6. My seats showed up and I ordered
7. There was a button to enter credit card info and purchase
In summary, looks like its worth a try to start over from the beginning and it "might" work.
Good luck
I tried this and it worked:
1. Used my PC
2. Used Microsoft Edge instead of Chrome
3. Log into account on GrizTix
4. Click on Season renewal
5. Takes you to the FCS playoff tickets
6. My seats showed up and I ordered
7. There was a button to enter credit card info and purchase
In summary, looks like its worth a try to start over from the beginning and it "might" work.
Good luck