Data suspension without solution

2 weeks ago I received an sms stating the following: "Please be advised that this cellular number is under investigation for *****ulent use of free data services, and will be suspended. Vodacom." I thought this was a spam message and then a day later my data stopped working. I went to vodacom to sort out the problem but they can't help me or give me a solution. I upgraded this year and pay for data each month which is included in my contract and I run a business so I need data to communicate with clients. I went back again to Vodacom yesterday and again they could not help me or give me a solution. This is unacceptable and pathetic to say the least. I am paying for data which I literally can't get access to.