After the mixed news I got last week, it is time to rejoice once again! Ten days earlier than expected I today received my passport back from the Iranian consulate in Munich with a travel visa valid for 30 days. So the only uncertainty which remains is the LOI for Turkmenistan.
In order to obtain a visa for Turkmenistan I need a letter of invitation (LOI) from the Turkmen government. I contacted the travel agency in Ashgabat to get a status of the LOI on September 8, in order to check whether they had started the procedure as discussed previously. The procedure for obtaining the LOI was started on September 2. So this is great news.