Experience Beyond to GO5G Next

Long story short, I went to a store and was given the option to change my plan to GO5G Next but I lose my 3rd line for free to make up for a promo issue and was advised not to call care to see about getting it back since I technically should not be on that plan. Math wise everything is good. But my question is, do I risk calling in to see if I can get my 3rd line free promo back and save even more or just call it a win?