Canceling with them is a nightmare

On the 19th July I called in and spoke to Nonsi? I needed an email confirming that my 2 contracts will be coming to an end, as well as a settlement amount for 1 of them.. She said she can't help me right now and will call me back tomorrow.. I then called again on Thursday 21st to follow up on what's happening, a gentleman then told me the lady was lieing and I could be helped. I explained again to him what it is I need and he said he would send me the email confirmation confirming my contracts will be ending 1 on the 31 July and 1 31 August, and an sms for the settlement amount. It's now the 27th and I'm still waiting for feedback! No reply or answers.. But the call centre calls my husband 30 damn times a day to offer a new contract!! What can be done to get my email confirmation and a settlement amount???????