Hey guys - ahlong & JLA for your help, screenshots & advice. Really appreciated it as I'm very noob with YES sim card, I've only ever use Maxis before this.
Anyways, I've already just reloaded rm30(about rm28 after voucher & coins discount). Then I realized I probably did this too early, should've waited till last day of expiry before doing this, but I needed to test how fast the entire reloading top up process at Shopee takes, instead of scrambling at last day. It took roughly bout a min or less, which is very fast btw.

So now I noticed the account expiry date is 5 Jan 2024. However, data expiry date is 4 Dec 2023. Does this mean I have to renew the plan on 4 December by clicking +Add-on? Does YES still have some basic internet function after the data plan expired, so like on 5 December I can still access YES app to renew the data plan?
the last day before plan expire. click 'yes databack' to add shopiee *free* databack
I've tried clicking on 'YES databack' but it needs a 'voucher code' & user id. How do I get a voucher code? Also, user id is the one displayed in YES app, right?
Again, thanks a lot guys.
it's your shopee ID. the code you can get it from shopee