No, I didn't need to talk to them. My wipers have just arrived, look okay but all wipers look the same to me. No instruction in the box but hopefully they will be easy to fit. Quick delivery though, only ordered Tuesday evening.
I'll let you know if they fit and seem to work okay.
Just replaced blades on a Fiat Ducato 2010 model, both blades from wiperblades.co.uk, fitting took 2 minutes, seem to work fine, clear the windscreen nicely. Paid about 13.00 delivered so not as cheap as ebay.