Never thought I’d see this, but I snatched it up the moment I spotted it. Not gonna say from where in case the manufacturer gets pursued for making counterfeit goods. ;p
Some things you just don’t hesitate in buying. 
Just to add on to my previous post - after removing the deb of Vodafone Mobile Connect for Linux, the ZTE modem no longer auto-switched. Following is the udev rules file I added to make it auto-switch:
ACTION==”add”, SUBSYSTEM==”block”, SYSFS{idProduct}==”2000″, SYSFS{idVendor}==”19d2″, RUN+=”/usr/bin/eject /dev/sr1″
RUN+=”/sbin/modprobe usbserial vendor=0×19d2 product=0×0063″
ACTION==”add”, SUBSYSTEM==”block”, SYSFS{idProduct}==”0063″, SYSFS{idVendor}==”19d2″, RUN+=”/sbin/modprobe usbserial vendor=0×19d2 product=0×0063″
Put the above code in /etc/udev/rules.d/46-ZTE.rules and do a “udevadm control ––reload_rules” (that’s a dashdash as per standard Linux command arguments). After that, once you insert the K3565-Z modem, check dmesg and it should report that ttyUSB1-5 have been attached to the device, and you can follow the wvdial procedures below.