Yes, tried them. No luck. Have since ordered from Partacus.de (German online distributor). Entered part number direct into Google and they were top of the list. Assuming the stated stock level was correct, should be here within 3 days. Fingers are now crossed. Thanks for your response though. Nice to know someone's out there...
MOT failed this morning for a broken offside front coil spring. To my surprise, neither of my local dealers had one in stock. They were on 'back order' with an earliest delivery date of 10 days time, i.e. Wed 31st May 2017. Any advice on where I might get one? Original part number is 20330AG790. I've tried Autodoc/Motordoctor/ACP on-line parts suppliers and local motor factors. No luck.