Vodaphone Top Up Scam?

Plz can someone help me?, I topped up £5 (Im on vodaphone, And its a blackberry curve) and I went to call to get my internet and it said it cant do it try again later. And I checked how much credit I had and its randomly took of 20p and I havnt even used my phone and now I cant top up?? Please Someone help

Contact Vodaphone support:

Start with where you're located:
http://www.vodafone.com/content/index/about/about_us/where.html