Dress shrunk and I can't make contact with Zara

I ordered a dress online in Sept for a function end October ie more than 30 days ahead of function. Wore the dress and washed it by hand in cold water afterwards although label allowed machine wash. Only wore it again at Christmas and realised it had shrunk in length significantly. I have photos of self with dress at both events. Now I am outside the 30 day exchange period so it won't allow me to refund and cannot get a tel nr or e mail to speak to someone. I don't live near a Zara store. The product was below standard. It cost R2599. I am considering reporting to the office of the Consumer Protector as I am unable to make contact with the store?