More questions about SheIn

I have a question,can I send back a Bikini,I just received it but the top is to small and the button is to big. can i trust shein? hi i need to know how long it will take for items to be received if I place the orde on 5/23? Will my items be delivered to my house? if I ordered it with shipping and receiving for 2-4 days should I expect that I have something next week and I need this outfit I need a customer service phone number to contact does it take long for the stuff to come in ? i'm trying to order a swimsuit for spring break and i'm worried if i order it won't come it please help me about order replacement Why am I getting an error that servers are down on the app? My WiFi is perfect and nothing is wrong with my connection. Please can you tell me when my order E853958 will be delivered Paid by paypal