It's the other way around. The House of Lords can correct things, but nothing proceeds on their approval alone. Either House can override the other during norma

It's the other way around. The House of Lords can correct things, but nothing proceeds on their approval alone. Either House can override the other during normal proceedings, but via the Parliament Act the Commons can exert final say over the Lords. The Commons, while technically not the Sovereign, is the sovereign body here. Being called in front of one of their committees is Serious Business in UK terms.