Unable to Insert Key into Door Lock: Solutions & Advice for Stuck or Misaligned Locks

Hello. I have such a problem with the insert in the door, I do not know what company. Normally I locked it all at once, and something touched me and I turned it halfway with the key taken out half more .. I pulled the key further in this position and now I can not do anything because the key does not want to enter the whole .. I am asking for advice whether to force it in or HOW? ?? I can't enter the apartment ..

Take a picture of the lock and show it.

Unfortunately I'm not there anymore .. I had to go to work .. It is such a door that inside it is a door handle on the outside only a ball

It won't tell us anything.
Search the internet for photos with such a lock and show it on the pattern.

Show the photo of the key.

Absolutely not by force yet. There will always be time for that - (hammer, drill). Try with a SMALL metal object (size, weight of a teaspoon) to knock sideways on the key, try to insert and remove it. Tap on it and LIGHTLY try to insert it, twist it - in a word: it can move something inside. Once, I fixed the padlock into which I pressed the key with a bit too much force. Fact, I was tapping for 20 minutes. and only then did I use isopropanol and olive oil. You have to feel whether the key is dry or "tar".
Because "as in tar" it may be a solvent at once.

Hello.
If it is an ordinary insert, use the tip of the key or a screwdriver to turn it back to its initial position. Then you can insert the key.

Ok, thank you in advance .. And if, in the end, it did not work, what tools would I need, I would like to know earlier so that I could take it from work .. I would not want to call a specialist because I will add that I am abroad and the costs can be very high