Felicity King-Evans: Bah, Fridays are my busiest mornings but I love a grammar debate!
I won't do grammer but I will do logic. Applying once or twice has a minimal effect (or should that be affect), and only lasts 12 months. Why not ask about all the other pernicious effects such as "unannounced" defaults and payment markers resulting from disputed billing all of which last for 6 years?
And perhaps more closely connected with your question, "searches" which should be "quotations" but for the incompetence of the searching organisation.
To return to the logic of the question, apart from the narrow issue immediately above, multiple "searches" occur when previous "searches" have resulted in an unsuccessful application which has been unsuccessful for reasons other than the number of "searches".
So had "irrelevent" been one of the questions that's how I would have answered.