I'd pay the $11, it's the $8 shipping I'm not happy about. I'd drill the lock at that point.
If ordering online and ordering a small item like that our shopping cart tends to figure the shipping high, This is something that I can't control. It's difficult to figure how the shopping cart figures totals. Any time any of you order online and feel the shipping is too high just call Janet and she can re figure it and I'm sure with a small item like a key she can treat you right on the shipping.