Aye. Looked like a right tit this morning, orming myself into an 18 grand car because I can't open the ing driver's door!! I'll give it a good squirt tonight.
Had an identical problem 2 days ago - used the passenger door, then large amounts of WD40 into the lock + on the key. Wiggle it around, 1 more spray and presto - now completely sorted. Good lukck.