Hi @Alfredok8s
Welcome to the customers help customers Community of Vodafone.
Have you just taken out a subscription or has it been longer? If you have just taken out a subscription, it can take 1 to 2 weeks before you receive a message that you will receive 200GB instead of 100GB. So please be patient a little longer!
If it has been a while, check for yourself whether your address details are the same with your Ziggo account and Vodafone account. If that is not the case, please contact Vodafone customer service, who can help you solve this.
If your address is correct, and if it is the same at Vodafone and Ziggo, please contact customer service. They can then check with you to see what is going on. But only call if it has really been more than 3 weeks since you took out your subscription. Otherwise, as I wrote above, wait another 1 or 2 weeks. You will automatically receive an SMS message.