Inform the owner to come to the property to get the key, because the lock cylinder has been changed.

For the convenience of the owner, clearly state where to get the key, but after it cannot be changed, send a notice to ask the owner to get it within a few days. If it has been changed, there is no time limit. Just say you can't get in, contact the property.

After that, please forgive me for bringing some unchangeable things to the community owners.

Then add the name of the property management company.

time

I hope I can help you!