No service

I Nigel Roets have been trying to load a promotional just 4 you data bundle or purchase one of the promotions for 2 days now with no luck,I called data support and client services and they confirmed they do not have a technical issue,but I must reboot my phone and try 2 hours later and this did not work.I keep on getting a error via the *111# menu that says-\and error has occured please try again later"- why?please let me know on *** if there is anything wrong?"""