uggh... not very helpful that grande rep. Contact the rep again and tell them you just want to know what foodservice providers in your area carry their fresh mozzarella. If they question you (ask for your business name...whatever) tell them you are working on a recipe because you plan to open a pizzeria/catering operation/ mobil wfo ...whatever! There is no reason why they shouldn't direct you to the people that sell their cheese!!!! I do consulting for pizzerias around the country, and have contacted grande reps in at least 9 different states at this point to get samples. So far every rep I have contacted has freely given out this list without questioning my credentials. If you want me to I will contact them for you and get the list... just send me a PM. It sounds like the wording you used may have scared them off. This is a wholesale not a retail product, but that doesn't mean your not entitled to use it if you go through the proper channels!
Once you get the list, contact the foodservice providers and ask them if they do "cash and carry". Many will try to get credit apps before they will sell to you, and are set up only for very large orders, but many also have a way to sell to smaller catering companies, or even individuals. "cash and carry" that means that you dont need to be set up for delivery and you aren't expecting them to front you the products (so no need for a credit application). If they aren't set up for cash and carry, tell them that you are willing to pick it up.... and you will show up with exact change in cash. If all of this fails you are out of luck, but I think its worth one more try. Again... the thing that makes this possible is that the case size for the fresh mozzarella is 6lbs. Most of these places wont break cases, and thats really more of an issue if your looking for the aged loaf mozzarella that comes in 48lb cases!