Beaware - Fraud Call from Lebara - Need Help

Hi,
Today i got scammed by a person pretending to be from Lebara customer support - he called me to help me with changing my 4g sim to 5g as they collaborate with Vodafone, he had all me details , phone number, home address. Intially I got suspicious about him so login to Lebara Website and went to thier help support and then chat support. I shared my concern with the chat advisor and shared the two numbers from whom the fraudster was calling me - the Lebara website chat person approved those two numbers and confirmed that they are calling all customers for this sim change.
I believed, the Leabra Chat support advisor and the person pretending to be from Lebara told me to pay £50 as a security deposit which is refundable, I did not doubt because the chat support advisor approved it as a legit, so i paid and got scammed for £460.
When i called the Lebara help support via call they said its a fraud, they are no doing it. When i asked the chat support advisor to help me to get the previous chat transcript as they record everything , he said no we can't provide it.
I think Lebara website is hacked because the moment I chat with the advisor the Fraudster again call me on whatsapp.
Can anyone please tell me what should i do now?
Thanks.

I'm sorry to hear that you fell victim to a scammer G81511 and thanks for taking the time to report your experience, it helps spread awareness and let others know what to look out for.

I will flag this with the team on my end and as for your next steps I would advice you to report this again to Lebara customer support so they can make a record if it and also make sure your account is secure.

Regarding the money you lost contacting your bank and the police for further assistance. If you have any messages from the scammer you can report them by forwarding the messages to 7726.

We also have some advice here on the community. Please let us know if you need any further help with this one.

Hi, Martin,
Thank you for the information. I have already made Fraud report. I did report to Lebara customer support (Phone and chat) , to be honest they believe Lebara website is secure and is not manipulated.
I need your help, I was chatting with Lebara Support via chat help on 26th April around 2:00PM? Is it possible to get the chat transcript as Lebara record everything?
Any help is appreciated.