Vox-frustrating experience

I've had an frustrating experience with Vox. They sent an email announcing new prices. I requested a downgrade then was told it's for new clients only. I asked why they sent it to existing clients then. I asked whether I could cancel and have someone else come in as a new client. We then called and was told that it was possible but there was a waiting period due to limited quoted. I found the whole thing non-transparent, saying one thing and then going back on it. I asked for my contract, they sent a document with no signatures but my information was typed on. The second one was a quote, with the quote expiry date on.

I therefore requested cancelation 2nd April, they cut the line just before the of end April as we went with Web Africa. Now I'm being invoiced for May.

When the lady said no claw back fees, I took it no further fees were required. She did not explain clearly from the get go and now I'm still stuck with paying when we did not even use their services.