Samsung S5 not working with Telkom Mobile

Hi,<br> <br> My device was recently incorrectly blacklisted by Vodacom. After a lengthy process I finally got it unblacklisted.<br> <br> However, after the specified 24 hours of leaving my device off, the device was still not able to be used.<br> <br> Thinking it was still Vodacom which had not unblacklisted my device as yet, I followed up with them to find that the device has been unblacklisted correctly.<br> <br> Upon obtaining this information I tried some Vodacom/Mtn/Cell C sim cards in my device to find that all worked correctly and I was able to make an receive phone calls.<br> <br> Therefore I found that it is only Telkom Mobile sim cards which are not working on my device.<br> <br> Can you please contact me any time after 10:00am via cell phone or alternatively on e-mail.<br> <br> This issue is starting to cause me extreme inconvenience and would like to get it sorted ASAP.<br> <br> Gavin