Was flying OZ March 2016 on ICN-FRA route. They had only 1 bottle of Churchill among 4 passengers, which we finished quite fast.
The more hilarious part, they also had just 1 bottle of first class red and white wines, which we also sipped fast during 11h flight.
Further we were offered business class wine . We were trying to make it all the way to economy class served wine!

It was upsetting, but hands down, OZ has the most delicious food! Their bibimbamp is hard to beat.

Further on champagne, in Jan 2017 we took SQ SIN-CGK morning flight, and were initially offered orange juice. I asked if there is any bubbly (we didnt expect any at all), and they offered us Krug or Dom. Surely we said Krug, but FA returned saying they carry no Krug, and can offer us only Dommy. It smelled a bit of a bulls**t, but they opened 2 Doms for us on 1.45h flight.

Next flight was TG, which also offered Dom. It was 3 bottles for full cabin and further they switched to something else, cheaper, but pretended it was Dom (but stopped serving from the bottle in front of you, and were bringing you glasses).

Generally, most of *A are reducing on their bubbly offering.

I was even wondering if before the flight I could notify OZ that me and my friend are alcoholic sponges and they shall carry more bubbly, but not sure its even possible

Any ideas?