I got GTIN exemption approval twice for my brand and products, but I still can't list them because it keeps asking for a GTIN exemption. I've tried several times to list my first product, which doesn't have a GTIN, but it keeps telling me to enter a GTIN or apply for exemption again, even though I've already been approved. It's been more than 24 hours since the approval, and I've made sure it's in the correct category, but nothing is working.