Poor service

I ordered via Uber small burger double meal only burger was delivered. I phoned, the person who answered referred me to the manager. I explained the situation and the call got cut. I phoned again, phone rang and went to voicemail and this happened about 3times. Finally I was answered and explained the situation to an unprofessional manager who didn't give me a chance to explain and interrupted me while I was explaining. He told me it reflects as burger only on their side I told him on my side it reflects differently. He sent screen via WhatsApp showing burger only and I'm not happy with this and the manner it was handled