Your image shows 30 days though.

And if reload RM15 rather than buy that data, doesn't that mean the RM15 can be used for call/SMS?

Better check your phone's own records, perhaps got some game updating (or malware on your phone). Do you use hotspot?

Check your windows network usage history, even without windows update perhaps steam running in background and update some AAA game? Computers are very bandwidth intensive if you don't pay attention because everything just assumes internet is unlimited.

Can't you just use it to purchase the plan?

Generally agree.

Well.... depends. It is my main line, and every month maybe 2 times I have to switch to my backup hotlink line. That's not because didn't drop coverage, but because underground parking you hardly need to have internet (you don't hang out there), and if I'm in a mall I'm not really using my data very much. YMMV based on your own habits of course. The annoying thing becomes QR payment inside malls/shops for me, but mostly I use samsung pay which doesn't need internet so...

No way to get around it, must get a 'test' sim card and put some value in, then test it kao kao in your locations. I've experienced before one house in the row very good, the other house further down the row no line.... so 'area based' description won't be 100% sure also.

Why would this deactivate your dataplan? You can still purchase the 30 day plan once every 60 days (buy it and also redeem shopee data, then redeem shopee data again the day before the plan expires).

But when will the line expire?

Day 1 - reload RM5 get 12 day
Day 12 - reload RM5 get 12 day
Day 23 - reload RM5 get 12 day

So your line should not expire?

I use it to make calls (esp bank etc) as my primary line has no free calls (365 day Hotlink Pantas).

Not sure if you can sell to other users?

I am hotlink line switched to YES line with hotlink line as backup (365 day validity).

Coverage in my areas (Subang Jaya, Sungai Long, PJ) is good, not worse than hotlink at all.

I tend to have to fallback on my hotlink line when in the mall (esp for ewallet payment, or loading menu on those QR code). Not all mall, for example if you know Sunway Pyramid Go Noodle, there no problem (edge of mall) but Kim Gary which is just a few shops down, YES can be quite slow unless you sit at the outer edge of the shop.

General recommendation - don't rely on it when inside big building. Or upstairs in high rise apartments (both in klang valley and JB I had this issue, but it affect both YES and Hotlink similarly la).

Sure not just physically damaged sim card?

If you add new GB before the old one expire it adds together. So far my app shows 247.9 GB used... and 452.1 GB balance (total 700 GB I accumulate over 5 months). I also use from two shopee accounts (me and wife).

How I handle is to use YES and main line, and have secondary sim card from big telco for those condition. E.g. I use the hotlink pantas 365 day validity with a few gig data for the 1 year period. Good enough for ewallet etc where YES fails, and also use that number for all the OTP etc which last time YES have problem with.

Suggest just buy a sim card and test yourself. My own opinion:-

1. Coverage for whole KL no issue. Mostly 5G, if 4G mostly cannot use properly.
2. No comment, but I don't see why not. If you're heavy shopee shopper, just use their databack to get up to 100GB a month, no need unlimited plan that way.
3. Underground and inside mall sucks in general. YMMV but for me not reliable at all, I use my backup Hotlink Pantas 365-day plan in those cases.

No point you ask - many have already posted, scroll back the history here. If you got a question about a specific building then maybe useful. Otherwise is just vibes, I can stand in one shop and get very fast 5g, then I go to the other shop down the road and struggle to load up grab (this isn't just about YES, its just how mobile telco work).

Any way to use up my YES prepaid credit? Hit RM100 stuck in there di...

How you get validity without reloading?

Okay found this.... I have tried before but doesn't seem to add validity. Any further advise? As I understand, it is to buy the plan (+ add-on) but use credit to buy instead of paying from CC or whatever.

Haven't check but for my hotlink I can get their equivalent without any check.

Yes, any hotlink user can switch to pantas currently.