First, fill in the claim form defending the claim in full. This will give another 28 days to submit a defence.
As you are the defendant, you can ask that the case is transferred to YOUR local court.
Can you type out the poc's (particulars of claim)?
If she is taking the pee (which it seems) you can counterclaim for your own costs at a predetermined rate.
You need to get together the exact sequence of events, along with any correspondence you have.
As stated, you MUST defend. If not, she will get judgment by default.