Drilling new holes into things can be a great way of getting out of a sticky situation.
However, the stresses that a wheel goes through just in driving and cornering it is dangerous to remove material from the wheel itself.
The side forces of the motion of turning can bend or snap the wheel whilst you are driving (wit extra holes drilled).
By elongating the holes you have the possibility of the wheel being allowed to turn on the hub during acceleration or braking and will put the studs under a massive amount of stress which will shear the studs.
This may happen on the first drive or the drive one hundred but it will happen.
Please send them back and get the correct ones if not for your sake think about who else could get hurt in the event or a failure.