OCBC is extending the validity of all limo rides earned in 2020 to 31 Dec 2020 (or the actual expiry date, whichever is later). So even if you can't travel now, you'll have a chance to use them down the road.
T2 will suspend operations from 1 May 2020 to save costs and speed up its renovation. This means Singapore Airlines will consolidate all operations under one roof in T3.