Account statement not emailed as requested

I have been askin the Jet call centre to change on their system on my account that I get a monthly detailed statement sent to me, as they send me an email & sms just statin that I need to pay a certain amount for the month. After callin head office and having no luck there, just fro them to give me the bosses number which I couldn't get through to in anycase. So frustrated that I just feel like closing my acc and going else where!!! I then get through to the jet's account department and tell them my problem then they say they have changed it on the system and email me my past 3 months statements. the next month comes and still I get smsed on just a amount payable and no statement. I then called the call centre on Friday 27.03.2015 and told another person my history with my problems I have been experiencing and she tells me this is nonsense and she will make sure its changed and will send a detailed statement, it is now Monday 30.03.20145 and still no statement has been emailed to me. I am currently on the phone with the call centre once again and the lady mentions that on their system it shows that my details where changed on the system on Friday but now im on hold for 15 min.