terrible service

I signed up for a tracker and the first 3 months no debit went off then they decide to take a lump sum. I also cancelled the net star go which was never cancelled and when I asked why not they said I hadn't and I HAD TO SEND PROOF which isn't my job. I have since cancelled the service and played the penalty and now they tell me it isn't reflecting so I have to send proof of something again because they are either too lazy or ***********. Glad to pay the cancellation and be rid of it. Now I see why colleagues warned me against them.