Update on the iron saga. Having checked things out and given up in disgust, then about 3pm suddenly thought to check, and Argos was open until 4pm, so got the yellow peril out and went down there. Shop was empty and pleasant staff lady helped me. I explained that what mattered was having one in stock right then rather than choosing and them not having one. So with her help was triumphant and was able to come back with new iron, checked instructions etc and then was able to get the job done. Plus point, was actually not faffing around looking for cheapest, best buy etc., and sorted.
Today the sun is already high in the sky and so am pleased with my efforts and have a choice of whatever I want to wear now! I wear mostly cotton , and have very sensitive skin, so it is worth the effort to feel comfortable.