Manufacturers want you to deal directly with the dealer that sold you the spa and is in part why a reputable dealer is "Just as important". If you are unhappy with the customer service with your dealer... show up at the store around 1 pm on a Sat. when the sales floor is at it's busiest and let them know how disappointed you are in a mildly loud voice. I am 100% sure they will kiss your ass.. pronto...lol
Update, April 29:
Small leak noticed, water level 2" down (I don't check water level every day). So I removed the filter and added more "Fix a Leak". Well, the marine epoxy was a good try, spa is 36 years old.....the epoxy looks like it's still holding....