Not happy with the device

I Bought an Iphone 11 on the 18th i went in the branch did all the payments, However they dis not have the stock on the phone were receiving stock the following day,and was told it will be delivered, did the follow up on Tuesday and was told stock will arrive on Wednesday followed up again Wednesday with no response , i called on Friday and was told she forgot about my order but will send the phone to courier, I didn’t wait long as it have arrived today the 25th, but im not happy there is a space between the screen and the back of the phone called and sent the picture and was told they will call back again, and there’s a number i need to call.