Fishaways Cosmo: Missing Food and Rude Staff

I made two delivery orders from Fishaways Cosmo City and they both arrived with missing items. When I called the store to let them know whoever answered wouldn’t tell me their name and they said that they can’t find my order nor my profile on the system. I suggested that she should check with the order number and she said that she can only check with the phone number. I gave her my phone number but still... Nothing. I asked to speak to the manager and she said that it was the manager speaking. I tried to explain and help her find the order but she started responding rudely and eventually put the phone down on me. Firstly, orders should not have missing items. Second, staff should be helpful to customers and willing to politely assist should they have a problem, rather than arrogantly putting the phone down.