problems with connecting Hologram sim card to a network

Hello, Everyone.
I got my hologram sim card a few days ago. I have made several attempts to attach the sim card to a network but i have not been successful. These are the AT commands i used to manually attach the sim card to a network. i am using dragino NB-IoT shield which uses QUECTEL BC95 Module.

AT+CFUN=1
AT+CIMI
AT+NBAND?
AT+CGDCONT=1,“IP”,“hologram”
AT+CEREG=1
AT+CSCON=1
AT+CGATT=1

After issuing the above AT commands , i try querying the network to see if it is activated but it returns +CGATT:0 which means detached.
On my hologram dashboard the state is showing ACTIVE.

Any help is highly appreciated. I stay in Germany