Failure to contact us or call back

I am tired of trying to contact Vital Aire via phone, only to be shunted from one person to another and finally to be told Mrs Nicholson is busy and will get back to me - this never happens. My wife also tried and used up all her airtime in the process. This is poor service. Furthermore I have written numerous emails which also fall on deaf ears. When we initially got oxygen hardware, Vital Aire's case manager informed me, \Don't worry