Key wear can look like ignition failure
A worn key may stop turning smoothly or only work when moved a certain way. If you have a spare key, mention whether it works better. If no key works, the ignition or steering lock may need closer attention.
What to try before calling
Make sure the vehicle is in park, the steering wheel is not bound against the lock, and the key is not bent or cracked. Do not hammer the key or spray random products into the ignition.