Unfortunately Bitmart do not provide a customer service telephone number, but you can get support using the email: support@bitmart.com
Bitmart login using your phone number
When logging into your Bitmart account remember to delete the international code and the first zero from your number. For example if the full mobile phone number, including international code, you used to register you account is +44 (0) 7769 423423. Then you would use 7769423423 as your login details.
Bitmart Alternative Contact Details
As well as the email address support@bitmart.com you can also get in touch with Bitmart using the help section on their website. This can be found on the bottom righ-hand corner of the website and can be opened by clicking on the ‘Help Button’. Customers can also contact Bitmart using their Twitter account, as below: