Disappointing Experience with Inconsistent Explanations
We used this OAK Tel SMS provider for several campaigns to Thailand.
Unfortunately, we experienced poor delivery results on campaigns with OAK Tel SMS Provider sent on 25 June and 29 June, while our SMS balance was still fully deducted.
Initially, we were advised by OAK Tel SMS Provider that Thailand SMS could be sent anytime, and when we specifically asked whether we needed to send our content for verification first, we were told "No need send me content 1st for verification."
However, after reporting the issue, we were later told the problem by OAK Tel SMS Provider, was due to the SMS content. This was confusing because no content review was ever requested beforehand, and similar content was successfully delivered on other occasions.
Throughout the discussion, we repeatedly requested a detailed explanation from OAK Tel SMS Provider, delivery logs (DLRs), and the specific reason the supplier considered the content problematic. Unfortunately, we never received a clear technical explanation.
The support staff from OAK Tel SMS Provider keep reasoning, and the overall handling of the case left us disappointed. We have lost confidence in the service and will not continue using it after our remaining balance is exhausted.