If your mobile number is able to send and receive SMS, both locally and from overseas numbers, we recommend contacting the APP providers to flag the OTP issue to them. They may be able to alert their OTP vendors to look into it.
If you are unable to receive OTP from
| APP Providers | Feedback to their customer support via |
| DBS | 18001111111 |
| POSB | 18003396666 |
| OCBC | 18003633333 |
| UOB | 1800 222 2121 or customer.service@uobgroup.com |
| Citibank | +6562255225 or singapore.customer.service@citi.com |
| Standard Chartered Bank | 18007477000 |
| SingPass | +6566430555 or customercare@assurity.sg |
| Grab | +6566550005 or support.sg@grab.com |
| Gmail/Google | https://support.google.com/accounts/troubleshooter/4430955?hl=en |
| Go to Facebook > Help Center > Report a Problem. | |
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https://help.wechat.com/cgi-bin/newreadtemplate?t=help_center/feedback_form
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