Unprofessional Service

I've been trying to get two disposable nasal tubes delivered since the beginning of August. I've made numerous calls to VitalAire to question when I'd receive it but I'm still waiting. The consultant told me that they can see on the system that I received it on the 2nd of August but I didn't. The driver, Victor only delivered my refill and said that he didn't have the nasal tubes. During one of my calls the consultant phoned Victor who acknowledged that he still owed me the nasal tubes and promised that he'd deliver it that day which is a week ago and I'm still waiting. The nasal tube I'm currently using I've been using for so long and need a change but I've had it with VitalAire now and especially Victor. Yesterday when I phoned them they said that they'd give my request to the nurse because the nasal tubes had never been ordered so I really don't know anymore