Siyanqoba Trade Union is in negotiations with DD Manufacturers about a wage increase. The parties fail to agree, and the matter is referred to the CCMA for conciliation. After two weeks the matter is still not resolved, and members of Siyanqoba Trade Union become impatient. On a Monday morning, they give DD Manufacturers a written notice that they will engage in strike with immediate effect from the following morning. Advise DD Manufacturers on whether the strike is protected or not.