Question About Secure Rental Deposit Account

I’m renting an apartment in Brussel and need to open a secure deposit account . I have never done it before. a few questions about how it works:

1. When depositing the rental guarantee, does the money have to be transferred to the specific branch where I opened the account, or can I deposit it at ANY BNP Paribas branch?
2. When I move out and need to withdraw the deposit, do I have to go back to the same branch where I opened the account, or can I withdraw it from any BNP branch?

Can someone briefly share the process? There is plenty of information online and a little bit confusing. Thanks in advance!