Buy a credit from Voipstunt or Voipraider?

I've been using Voipraider for awhile and I was able to buy credits without any issues... but recently I found that it asks you to provide a mobile phone number on which you should get a confiramtion SMS with a verification number... I did that but never got any SMS back... I tried different format but the same thing ...

I live in Canada and I used:

+1 613 123 4567

OR:

001 613 123 4567

Same thing never got any SMS back...

why?

what I missed?

Welcome to Voipuser.

First of all, Voipuser has no connection to the voip providers that you mention so we probably can't help you much. We get quite a few people asking questions similar to yours. It seems that these providers do not give much if any customer service. They are of course not really free in the sense that the calls cost nothing (remember you have to pay something before you get free calls!) and you may do as well with another service who charge per minute or second. It depends where you are calling. There may be ways that you could call almost free using voip. We may be able to help you further if you tell us what your needs are.

are you sure that your cell phone is subscribed for international text messages? lots of north american cell phones are limited to domestic incoming/outgoing text messages unless a request is made for international; btw international messages are often charged at significantly higher rates by NA carriers.