Grab transactions with description “GRAB*” under Grab Taxi Holdings Pte Ltd and its affiliated companies, but shall exclude any Grab mobile wallet top-up transactions (exclusion is effective from 16 March 2020) - Additional Rebate 5%
Understood, no more additional rebate 5%.
I honestly think that it's game over for UOB x GrabWallet, but I think UOB really should be clearer on their wording.
The inconsistency pointed out is about the quarterly cash rebates: "For details, visit uob.com.sg/onetncs" and the wording inside the pdf implies that it is the main document, and the website is just a summary.
5. Exclusions
"The following Card Transactions (collectively referred to as the “Exclusions”) do not qualify to earn any Quarterly Cash Rebates or Base Cash Rebates.
a-e) [the usual exclusions here]
f) [bunch of MCCs here]
g) [specific exclusions here]
h) any other transactions as may be prescribed by the Bank from time to time.
Grab isn't specifically mentioned here, nor is its MCC 7399(?). They added a lot of "wef 16 Mar 2020", so someone definitely went thru this list. Maybe on 16 March, the MCC of GrabPay might change to one of the excluded ones. UOB can probably also claim that (h) together with the website means that it's excluded, but it isn't 100% clear.