Buying inside EU with Commercial profile - How can I set my VAT number?

[ahomlokzat]

I would like to buy with my company from an ebay seller. We are both in the EU. I could not set my VAT number in my profile. When buying, I will need an invoice from the seller with my VAT number on it at least.

How could I set this up?
Thank you for any kind of information 

[koalagris]

Hongrie = ebay.com

https://www.ebay.com/help/account/contacting-ebay-customer-service/contacter-le-service-clients-ebay...

https://community.ebay.com/

[*miss-tigri*]

Inscrit en Hongrie,vous dépendez d'ebay.com et non d'eBay.fr ..