From what I understand Electrum is not BIP39 compatible that is why the Electrum seed phrase does not work in MyCelium.
But because Electrum is BIP32 compatible once you have the master seed (which is derived from the seed phrase) it should be compatible with any BIP32 wallet app, as long as they support the import of this master seed.
Solved it by using
http://bip32.org/ . All I had to do was to paste my BIP32 Extended Key in order to get the private key for my specific BTC address. Thanks for pointing me in the right direction. The reward of 0.1 BTC is going your way.