why no sms receive on my phone? i type 016xxxxxxx

Hi @nicregi -
Please try to remove Viber completely from your phone, then reboot it. Wait a few hours then install it again from Market/AppStore. Now when you are asked to type in your number, choose Malaysia and enter your phone number in its Malaysian format (don't type in the "+60", because that's already accounted for in the country code you chose above).

Is it working now?

What device exactly are you using?
If it's Android, which version of it, and most importantly - are you using a Custom ROM or not?

@nicregi -
Thank you for the detailed information, it's very helpful in understanding the problem.

About the deactivation -
Please check your IMEI number (universal device identification number) inside the phone's "About" page. Once you found it, please compare it with the real IMEI number that's written on the back of your phone.

Some custom ROMs override the original IMEI you had when you received your phone, and this is the cause to the deactivation problem. We plan to provide a fix for this issue soon (Viber 2.1.3) by collecting all the problematic IMEI's from our users, and manually whitelisting them. If you'd like to make sure yours is also included in the list, you can let me know what IMEI is written in the "About" page, so we make sure it's going to be included in our fix.

About the random changing of the registration number -
In order to check this, we'll need the actual numbers (there might be a bug causing the number to alter). If you want, you can send me your real number in private message, and then also a few different examples of what the number changed to.

hmm ... Viber and Tango which one nice?