Poor communication

I really wish shein could make a choose which company we want our packages to be delivered by.Well I'm experiencing this for the second time...poor communication and I thought this time was going to be better but still the same . So I tried to call Buffalo for the first time to tell them that I made an error on my reference and I called so many times ,we even drove to the warehouse and we were told that our orders will be delivered on the next day(Tuesday) or Wednesday then on Thursday I received a message saying I'll receive my order on a Thursday, later the next (Friday) I received a call from the delivery guy.

So this time I did the same mistake I'm trying to call them their number is taking me straight to their pre recorded voice mail and also I sent them a message on Whatsapp multiple times they haven't responded. I'm so angered by your service and shein is going to start losing costumers because of your staff doesn't do what they are employed for!