I'm not a fan of GH Singapore for a number of reasons*, but it's odd to complain about not receiving a benefit that's not a benefit. You must have been extraordinarily lucky (or "persuasive") to have stayed at 7 GHs this year with club lounges and received full restaurant breakfast. Out of curiosity, which GHs are we talking about?
*Setting aside the fact that restaurant breakfast at GHs with lounge is not a Glob benefit, GH Singapore is behind the local competition -- club access comes with a choice of full restaurant breakfast at a number of Singapore hotels, including JW Marriott, IC, Westin, etc.