Originally Posted by percysmith

//has there always been a limitation of online spending in HKD only? *doh*

Since 1 June 2021 https://www.flyertalk.com/forum/cath...=#post33257034, by posting date

//At amazon.com, for example, you can choose the payment currency at checkout. - If I choose HKD as payment currency still use the HSBC Red vs selecting USD as payment currency?

Yes, though Amazon rate for USD is always near HKD8 (high)

//Do any non-HKD purchases online then generally count as overseas spending, and I can use the HSBC Visa Signature (with multipliers on overseas spend)?

Non-HK spending. So if you spend overseas in HKD, that is still overseas (such as, Amazon in HKD or Chrono24 which always charges in destination currency)

//Are uber rides covered with HSBC Red?

Yes