HI, I am currently enjoying...

HI, I am currently enjoying a MSCA fellowship (H2020-MSCA-IF-2014) in Sweden. I had plan a secondment at Humboldt University (Berlin), and to cover my costs there HU asks 1800 € per month, which is more than double of the Grant expenses that my host university receives to cover management and indirect costs (650€/month). In order to go to Berlin, I will need to add the Research, training & networking budget (800€/monh) and my university in Sweden will even need to add money (!?). Could any current MSCA fellow at Humboldt University inform whether their costs at HU are that high? if so, how their Grant covers it !?! ...and if not, could anyone figure out any logic in this amount request as a secondment... Thanks in advance, Laia