Worst service ever

I wonder how will you improve them when you bill customers for the handset that hasn't been delivered. Apparently the data I had was depleted after the number was migrated to prepaid. To get hold of a consultant by Retention takes you long up until the battery goes dead while waiting online. When you had a cut off with a consultant they can't return the call. I once asked them why aren't they returning the call when I had a cut off with a consultant and I was told they are calls can't go out. There's a limit of calls customers has to make to call the call 808. If you have exceeded that limit, you have to wait for certain period before you can make calls. On the other hand you are sitting with a problem that can't be resolved. Your service is bad indeed and it will take you years to meet the standard of other service providers. I have persevered enough. You complain about supervisors and you will be taken pillar to pillar. You want to speak to the manager and you will be told the are no managers on floor but only supervisors. You ask for supervisors to litsen to the voice recording of what transpired and no one will ever come back to you with a feedback.