If it's Autoglass - don't bother asking for OEM glass. When my screen went recently, I asked for OEM, to which they said they couldn't confirm my appointment until I had been given a price - which would be forthcoming within 24 hours. Insurance wouldn't cover, and said I had to pay the difference between the Autoglass and OEM. Which at the time I though - OK.
What they DIDN'T tell me was which 24 hours they were referring to, as over 1 week later, at least 4 calls a day, my own personal customer service rep - we (including the customer service rep) still could not get a price out of the Autoglass dept who prepares these things. Apparently the team who provide the OEM glass price were "too busy" and "couldn't say" when they could do it. I was also advised that even after I agreed the price (if it ever was forthcoming) then it would be at least 3-4 days to order and acquire said Audi glass, and only then could they give me a fitting date. And that apparently part of the problem was that Autoglass were re-organising and sorry about that as well.
After 10 days of waiting and no price being forthcoming and my screen looking more and more like a jigsaw, I gave in and said just fit one of their own screens. OMG. Then they said they couldn't as I had asked for OEM, thus they had to cancel my original order and start over again with a new order. ****** nightmare. Fortunately the customer service rep (who actually was very very good) managed to sort me out to get me a screen fitted quickly (or should I say quicker than had I let process take due course, which would have been another few days - he got a fitter from a depot (not in the fitters area) to come out on Bank Holiday Monday to fit it. Top bloke. Damn good fitter as well, took lots of care.
Anyway having had their screen fitted, it is absolutely no different to the Audi one except it hasn't got 4 rings stamped on it. So on reflection, I just wish I'd gone for their screen in the first place and saved myself a lot of hassle.
