Trying to call Lufthansa (UK)

Does anyone have a number for Lufthansa costumer service?

Their chatbot is not helpful and it seems impossible to call them. I have tried five different numbers to get in touch with Lufthansa (from the UK, but an Italian number would also work) and not one actually connected, this is actually ridiculous. I need to enquiry for pet space availability for a booking I want to make, I know their pet policy, I just need to confirm availability for the flight I want to book. At one point I think I saw a phone number on their website specifically to book a travel but didn't note it down as I didn't need it at the time and now I can't find it anymore.

These are the ones I have tried, they either don't connect or say "you have not been given access to this service" (I used two different phones to call just to make sure it wasn't an issue with my phone):

+44 08008384267 (tried with a US prefix as well)

+44 03330067726

+44 03719459747

+44 02076604036

+39 089919800

If anyone has any other number, please let me know. Thank you.