yes - I understand your frustration - I was in the same limbo for 12months - using the manual key option.
but things could be worse.
if you can dissasemble your fob an try to extricate the RFID chip stuck inside....it may be easier than mine was.
If you're in luck you can use something a little less permanent to restick it in place.
Then ebay has cases+blade for cheap.
When you get that you only need to find a locksmith who can cut you a blade.
Once cut, its a simple change over.

PS - I didnt manage to remove my RFID - still working with a dodgy case.
PS - be careful with the spring clip and small bits when dissasembling.