Is the manager of the sporting good store serious!?
Working at a sports store, im totally embarrassed to hear this story. The store manager deserves to be fired. You can absolutely play golf. Henrick Stenson (Pro) is very tall, like 6’7 or so I think. They make shafts that are 50inches long, and then you can have them cut to your standards. But what you should do is go to a golf store and get fitted. They will tell you how long your shafts should be and everything. It might be an expensive trip by the time you get done, but it will be worth it in the end. Again, I truly apologize to you in the name of all sporting store workers.
