17号去伦敦办法签，要求材料有同行父母的法签复

自己预约了17号伦敦法签。
父母已经在国内拿到法签，但现在父母的护照在英国大使馆办理英签，所以我没法得到父母的法签复印件。
TLS网上有这样两段话：
1---If you are planning to travel with family members (parents, spouse, children), it is mandatory to have each person in registered the same group. This also applies to unrelated persons who plan to travel together on the same itinerary.
2---If you are travelling to France with a member of your family ( spouse, husband, father, mother ) already in possession of a valid Schengen visa, the copy of this visa must be joined to the application.