Signed up in November on a plan. Was not advised that the Infinity plans (which would have suited my requirements a lot better) were being released the following day! Exceeded the cap I signed up to but was not informed. Called Vodafone and upgraded to an Infinity plan (more expensive per month than original plan but suited me better). Sales rep agreed that the cost of the calls over and above my previous cap would be credited as I had agreed to sign up to a new more expensive plan. Bill arrived - credit not applied! Emailed Vodafone 3 times and got an autoresponse each time. Tried calling 3 times but was on hold for 15 mins or more each time. Vodafone then barred my calls. That day I eventually got through and spent 1 hour 10 mins on phone with agent who struggled to understand the issue. With respect to the agent, she was new to the job and clearly did not have the appropriate training. However this was extrememly frustrating as there was no supervisor available for me to talk to but she could not help me. Eventually persuaded her to unbarr the phone and give me a commitment to have a call back from somebody that could help within 24 hours. No callback! Received a text 5 days later saying that my "billing issue had been resolved". Also received an email to tell me my account was overdue - again with an amount that was overcharged! Phoned Vodafone again and got through to an agent after 20mins on hold. After 30 mins call he eventually agreed to credit the charges as was originally agreed 7 weeks earlier. What a struggle and ultimately I am listed as the customer who did not pay on time!