First, the swapping of the tires was a test - and Discount Tire only dealt with part of the results. You still have an alignment issue that will likely come back over time.
YOU NEED TO GET THAT FIXED!!
Find an alignment shop that agrees with the following: The published alignment tolerances are too wide. In order to assure good tire wear, the aligment needs to be within the inner half of the published range.
If a propsed aligment shop disagrees, turn around and walk away. Keep looking until you find one!