Have you bought the Gomo IDD add-on?
If I'm not wrong, my understanding is,
-- If you have not bought the Gomo IDD add-on -- you cannot make IDD calls.
Refer to this Gomo Web page:
https://gomo.sg/idd
* How does GOMO IDD add-on charge?
- GOMO IDD Add-on costs $5 per purchase and is valid for 30 days upon the date of purchase.
- All IDD calls are charged by per minute and will be deducted from the $5 IDD add-on credit.
Based on the
part in bold above,
That means you
MUST BUY the $5 Gomo IDD add-on FIRST --
then you have $5 IDD credit.
Subsequently
you can then make IDD calls --
charged by per minute and will be deducted from the $5 IDD add-on credit.
Other info from the same Gomo Web page above:
* How do I purchase GOMO IDD add-on?
Simply launch your GOMO app and go to Add-ons >> Singapore >> IDD to purchase GOMO IDD Add-on.
* How do I make an IDD call?
To make crystal clear IDD calls from Singapore, dial <019> <Country Code> <Area Code> <Telephone Number>.