LHR T2 lounge – UA redemption on Eurowings with Amex Platinum

[roger]

Per card review, Amex Platinum card holders can use – The Business lounge is open to anyone flying economy on Lufthansa, SWISS or Austrian

This does not say, if I am flying on EUROWINGS (UA Redemption), can I still use the LH Business Lounge by showing my Amex Platinum card?
Any real world experience? EW is of course part of LH group but flight is not on Lufthansa, SWISS or Austrian.

[Blair Waldorf Salad]

Officially, no. The t&cs define LH Group as LH, LX and OS only. Even though corporately the group is larger.

Of course, YMMV. Covered extensively on FT:
https://www.flyertalk.com/forum/lufthansa-austrian-swiss-brussels-lot-other-partners-miles-more/1868683-amex-centurion-plat-access-lh-lx-fcl-sen-lounges.html

https://www.flyertalk.com/forum/american-express-membership-rewards/1867960-platinum-centurion-access-lh-lounges-if-flying-lh-lx-os.html