Hello and welcome to jutsanswer, My name is ***** ***** i will be assisting you today,
I'm sorry about the issue, Please choose a different name and then click OK.
hope this help
I'm sorry but I'm not in a position to do phone calls, Did you tried my previous suggestion
1-sign in to the Dropbox website : https://www.dropbox.com/login
2-Click your name at the top of any page to open the account menu
4-A new page with your account settings will open. From here, you can change your name and your personal informations, if you get the message "That name already taken" choose another name and click save/ok
Hope this help, if you need further help let me know
I'm sorry. Did you try my previous suggestion? Would you like me to set up a remote session (NO extra charge), which will allow me to connect directly to your screen and assist you quickly with this issue?