Unable to sort out data qeury two data sims

Suspect that my datasim data used up. worried about high account, visited Vodashop Campus JHB who adviced that I still have 1.76GB data available and advised to put a hold on my account when overspend which I then did. I am now locked out and cannot access internet knowing that I did use up all my data. Unable through any means 082911 or chat to resolve or to speak to someone. Having a similar problem with data sim for my wife's WIFI rooter - purchase 500MB on 27/09/15 - according to Vodacom I did receive the bundle but I dispute because I was unable to use until 1 Oct when the contract amount was received. went in to Vodashop Lakeside mall twice, e-mail customer care twice, tried chat and phoning 082111 all with no success<br> PLEASE HELP