Hello, I was a T-mobile client that was thinking to change to Vodafone via Ziggo could be a good idea, I got the contract, the new card and I am trying to activate my new sim card since last week, I have done via telephone and nothing, I am trying to contact the customer service for ages and it's always busy and I can't talk with no one. So, what I can do to activate my new card as my contract with T-mobile supposedly was finished in 29 august? Thank you!!