How does Mobifone credit works?

My 100,000 vcn seems to last more than a month. I use mostly Wi-Fi but whenever I'm outside I am using mobile data.
My GF tells me to ignore all those texts, but every once in a while, she sees on and must do something.
I think you must activate something.
Some of them are 50% offers, if you add money, they give you 50% more.
I think.

I'm sure someone will chime is who knows more than I.
Umm, I think even my cat understands more than I.
But don't quote me.

You need to send SMS to 999 to register a Data Plan/Package of your choice.
See HERE.

Best bit of advice I can give you is download Mobifone Next.

That tells you everything on a live basis, if you're using 100,000 every two weeks then you're either not using a tariff or a phone addict.

Better than being a crack addict, mind

I got this message back in December. I've never used it though, so can't say how useful it is:

"MobiFone Customer Care Hotline 9393 (with 5 different languages: English, Chinese, Japanese, Korean and Khmer). Operator Assistance is available everyday from 7:00 AM to 8:00 PM to assist with your calling needs."

Thanks for the help. I went to a phone shop and got it fixed I also downloaded the App to track my phone credit.

I hope some of you may be able to help with some questions:

1. I am travelling to HCM this coming May and need get a Pay As You Go (PAYG) SIM card that will give me a Vietnamese Phone Number. I need this to open a Vietnamese Bank Account. I will only be using my Vietnamese Phone(VPHONE) when I travel to Vietnam once a year. CAN ANYONE SUGGET A PLACE I COULD GO TO GET a  SIM CARD and PAYG Plan?

2. When I return to the UK and my PAYG plan runs out will my phone number still be available on my VPHONE when I return to Vietnam ( 6months latter) and Top Up?

Thank you

Kytain - Gary