the user guide says this:

Validity
Prolong your XOX MOBILE validity with simple steps below:

SMS

6 Months Validity Extension (RM18): Key in VALID < space > 6 and send to either 23388 or 22111
12 Months Validity Extension (RM25): Key in VALID< space > 12 and send to either 23388 or 22111
so it probably means you have to buy them. top up itself does not extend validity except the first promotional one.
https://xox.com.my/support/user-guide/#validity
but.... another part of the website also says this. so maybe top up does extend validity as well.

PROLONGED VALIDITY
THAT NEVER RUNS OUT.
Stretched to give you absolute freedom.
Whenever you reload your Prepaid Plus plan, your validity period is instantly extended. Get extensions for RM1 a day and never run out because your new validity period will only start the day your previous validity expires!

https://xox.com.my/plans/prepaid/

if i get a SP FAT(Welcome Deal) along with new SIM will i get a 28 months validity too?

if i get a SP FAT(Welcome Deal) along with new SIM will i get a 28 months validity too?

Does the welcome package auto renewal or just count for 1 time ?

hi...is there any promo for birthday mth?
sorry if i hv miss out something...

1GB on XOX is RM 15
2GB on Yoodo is RM 12

How many months will this be valid for?

I am going to MNP so do I purchase a SIM of RM10 first?

Why is it that I have to wait for midnight just so that my data that expired and got recharged can be used again?

Is there a way to expedite this? It's very inconvenient to wait till the day ends for data to return.