Flexicare poor after sales service

I'm very unhappy with Flexicare. I joined this week and wanted to change my account nr for the debit order to go off while the lady did my application. She said she couldn't change it while we did the application and that I should just reply to her mail that she was going to send to me afterwards which she didn't do. I phoned every day do get this changed and I've sent emails to do this. I keep on transferring me and still haven't been helped. My beneficiaries is also not showing on my card. Also the plan I wanted to change but I'm not getting any help. They are quick to get you joined to take your money and after that you don't get any service from them. I'm very disappointed in them