Missing meetings in calendar teams from another teams account

Hi,

We have created a Microsoft teams account (office@berariiromaniei.ro) and additional another account (julia.leferman@berariiromaniei.ro) part of the same organization. 

The issue we have is that if we send meeting invites from the office account, the other account does not receive the meeting invites. 

 I mention we pay a fee for each account and the server we have for our emails is Gmail ( if that helps).

Thank you in advance for your replies.

Oana