The "we do not have suite upgrades available but we can give you a one time use coupon for 30 euro" is the standard excuse this hotel gives almost all globalist members for years now.

There is a bistro on the ground floor that offers fixed price business lunch that this voucher can be used against....it's good value in that regard, but if you already have free breakfast and decide to eat dinner in the lounge access it's better to use the voucher for drinks at the bar.

Keep in mind the 30 euro credit can only be used once per stay even if you are staying many nights.