申根2次签证能否去波黑、黑山和保加利亚？

行程是希腊-波黑-黑山-保加利亚-希腊，办下来申根两次入境签证。根据目前研究到的情况是波黑NO，黑山YES，保加利亚YES。
但是我致电保加利亚总领事馆签证处（就是游四海旅游页面提供的电话）咨询，工作人员竟然告诉我入境保加利亚需要用掉一次申根entry的额度，没办法再次入境希腊了？？！！
请问有去过的或者了解的大神能回答吗？谢谢！！


更新：已从保加利亚官网上确认只要持有效申根签就可以免签入境，英文原文如下：


Visa-free regime for holders of Schengen visas for a stay of up to 90 daysOn 25 January 2012 the Council of Ministers of the Republic of Bulgaria adopted a decision according to which by the date of Bulgaria’s accession to the Schengen area, our country will unilaterally apply a visa-free system for holders of valid Schengen visas. They will have the right to enter and reside in the Republic of Bulgaria for a period of no more than three months in any six-month period from the date of the first entry, without needing to have a Bulgarian short-stay visa. The decision entered into force on 31.01.2012.来源：https://www.mfa.bg/en/pages/109/index.html结论是保加利亚总领事馆的咨询人员极度不靠谱！