HUK24 does not issue a current insurance certificate. Help!

Hello dear community I have to register for a new job with my car. Among them also with my current insurance certificate. The problem is that my current insurance certificate issued by Huk24 from 22.12.2020 (issued) from 01.01.2021 – 01.01.2022 runs. On request to Huk24 if you can issue me a current one for this year negated and said that “a new insurance certificate is not created – without a change of contract”. I asked you again for a more precise explanation, you said, “The insurance certificate has not expired. Because without notice the contract will automatically be extended by another year. If necessary, you can submit your contribution invoice from August 2022 as proof.” After correspondence I sent my new office directly any documents, insurance certificate, contribution invoices and even the correspondence with the Huk24. They nevertheless rejected everything, because the insurance certificate has expired. If someone can help me, someone has had the same situation or knows someone who knows himself in the area. Somehow I can’t get out of this situation. Some people don’t want to send a new insurance certificate because it’s actually up to date and the others reject it because it’s actually expired on paper. I hope you could follow me and recognize my current problem. I wish you a nice Sonnta g and love greetings Sascha