Diferant contract that was signed / approved

On the 30th of November 2017 I approved a contracted with vox telecom that will give me the use of wi-fi connection via there LTE platform. The contract was for their promotion of 85 gig at a price of R799/month and they will give you an extra 85 gigs of data for free up until November 2018. I paid the full amount of R 3198.00. This includes the router, connection fee and the full month data of R799 in advanced. However two days later I received an mail from vox telling me that the router is on back order and it will be delivered between the 15 & 31 December 2017. I received the router on the 15 December 2017. I installed and connected some of my devices. By the 27th of December 2017 my data was finished. I phoned the after hour number and the consultant told me that I only have half of my data due to the fact that it was only registered at the 15th of December. This should have been then 85 gigs but instead it was only 43 gig. I ask him what was going on and I told me that it was a mistake from LTE side and he will put in a request to fix the problem. On the 1 January 2018 my connection was restored and i was back on line again. I was on holiday from the 5th to the 12th January 2018. On the 14th of January 2018 I was cut off again and I logged on to my account only to find that I only used 85 gig (my limit was supposed to be 170 gig). Again I called and was told that they will sort it out. I then Phoned the consultant for vox in Bloemfontein and he promised me that he will come back to me. This was more than a week ago and I'm still waiting for his call. I send a mail to his boss and the same day I received a call to inform me that they are working on the problem. This was 5 days ago and I still have no connection. On a scale 0 - 10 for the product quality I rate vox a 10. For after sales service they get a big fat 0!!!