worse competition ever

I have done this a week ago with no feedback but here goes again.. i email Jive ib 17/2/2019 to query why every time I enter the summer promotion i just get an error message. The email i used is the one on the bottel *** to query this problem. on 2/1/2020 i phoned the office of Jive and was advise that the staff on leave but that the will be back on 6/1/2020, i also emailed *** and a person with the name of Niyaaz Hendriks contact me via mail to ask my phone no, which i have provided. He contacted me i explain the problem. I also advise him of the phone no which i use to enter the competition and the error message is connection problem or invallid MMI code and the other message is invalid selection made, please check and try again. i have advised him that i have air time, data, wifi so i do not see why i am having this problem. we also discussed the process to follow the same on as on the bottle. He then again contacted me and advise that i will be contacted. So a week later and more than a month later and still no feedback or outcome. I buy at least 4 liters of Jive soda water a day and most of the time it is at Pick and Pay so i have proof on my costomer card and i have the doppies. So i would like to know from Jive how can i enter a competition this way?

i have use 2 email dressess to contact the compandy: *** and ***