As far as I know, the banned countries are Iran, Myanmar, Belarus, and Romania. Tunisia is not in that list, in addition to being far from being banned because of the nature of Tunisia's tourism and regulating laws.
As mentioned above, these complaints appear to be individual and do not represent a ban against a particular country or region.
We have already discussed this topic more then a month ago in Press board :
https://bitcointalksearch.org/topic/2019-01-05thousands-of-banned-binance-customers-remain-cut-off-by-the-exchange-5093827There are some countries in which Binance is stop operating, but Romania is not in that list because user
stompix say his friend from that country is still using Binance without problem. They are just start to implement some rules from their TOS which amongst other things says :
Prohibition of use
By accessing and using Binance and any of its services, you acknowledge and declare that you are not on any trade or economic sanctions lists, such as the UN Security Council Sanctions list or OFAC (Office of Foreign Assets Control of the U.S. Treasury Department). Binance maintains the right to select its markets and jurisdictions to operate and may restrict or deny its services to certain countries. The content of this Agreement shall not be excluded from the laws of the country under which the user belongs. Binance maintains its stance that prohibited users are not to use or access Binance and any of its services.
Binance Terms of Use