Terrible service and not useful

I have tried 4 different times to get my Username and password to work on their website and still unsuccessful, i have called their call centre (10210) numerous times. i have called about 8/9 times and everytime i have called i have had to wait for an hour just for someone to assist me and then to be told I'm through to the wrong department, then get put through to another, then i have to hold on for another hour if I'm lucky. todays incident i phoned 3 times and first time the line got cut so i phoned back, got helped with my first problem, but i told the call centre agent to phone me back if the line gets cut, which didn't happen. i called again and held on for 45minutes and spoke to an agent which told me she can't help me i need to call on monday. i asked her to send an email to the relevant department to phone, so I'm not holding on for hours again, she said she can't assist me with that, which made me loose my cool, i then asked to speak to her manager and she said she would put the phone done, which she did. i find this help line terrible and not helpful at all.