She doesn't use any of the rewards? I reload around RM30-50 into my prepaid cards just for the rewards and iTunes billing every month. I don't use Digi for calls or data. A few numbers which require data for Whatsapp are older numbers on Best v1 or v4 with IDDIC. I stopped buying SLL RM38 after I started reloading and buying rewards every month.
Probably nope, cause I just installed MyDigi apps on her phone not too long ago. She doesn't even know about rewards stuff.
These are what I have studied/use more (ie Yoodo, Redone, Digi, Unifi, Yes). Celcom, Umobile, Tunetalk, XOX etc not right for me, so when I mentioned cheapest/more expensive, am only comparing Yoodo, Redone, Digi, Unifi
--For monthly, Yoodo is the best/cheapest
--There are plans such as XOX with long validity and supposedly good price (can't really understand the plan though) but beware that XOX sms can have problems. 1 forumer mentioned that XOX prides itself to be spam free until bank sms can be considered spam. Haha!
--Redone postpaid cheapest is $8/month + SST(usually about 50 cents) for 1 GB data. They don't have 2GB. The next cheapest is around $28+
--Unifi bebas is good if you can get it as there is no expiry date as long as you use a bit of it/top up a bit each time (limit to 1 sim card per customer). Not sure whether it still comes with free 10GB LTE data. The top up is a bit complicated due to division between 4g/3g etc, so you may want to see the website
Yes--am only family with konfem 4G which is $30/mth for unlimited data capped at 4MBps. They have other plans but I'm not familiar
In terms of price per call/sms, digi is the most expensive.
My Digi plan-- calls@26 cents and sms@20 cents
However, if you need to call/sms Singapore, Digi is the cheapest
Yoodo calls and sms are the cheapest, followed closely by Unifi. Redone calls/sms are more expensive (if to 'non-Redone 'prepaid/postpaid' users--a bit complicated here but still cheaper than Digi.
Suggest your sister get Unifi bebas and another telco sim card. It really depends on her data usage etc. Your sister's credit is really a lot, so I guess use it only when there are really good offers. Otherwise use other telco lines.
There's always a grace period for the telcos. So you don't need to renew it every month if don't need the data.
Thanks for the info, I will forward this to her.