OK, thanks for that.
Just wanted to check before advising on this.
Unplug the appliance.
Take the top off.
Wedge the tub back and over to the left.
Reach down inside the front and find the door interlock.
Try to unlatch the door from inside (nigh on impossible but you never know your luck).
If you can't, begin working the lock side to side, back and forth to get the lock off of it's screws.
Don't just force it as this normally leaves it broken and the door still locked.
Once it comes off it's screws, lift it off of the door latch.
You will need a new door lock to repair the appliance.
The alternative to this is to protect the paintwork and use a lever to pry the door open.
You may damage the door, you will break the door latch so you would have extra parts to buy to repair the appliance.
Hope this is of some help
Let me know how it goes or if you need more help