I can't sign up with my phone number. It says my phone number is invalid.

You have to enter your phone number in international format. You need to add the ‘+’ prefix and the country code in front of the number.

For example, to convert a US phone number like 415 555 2671 to international format, since the country code for US is 1 so its international format will look like +14155552671. In some countries, local dialing requires the addition of a '0' in front of the subscriber number. This '0' must be removed in international format. A number such as 020 7183 8750 in the UK would be formatted as +442071838750.

Please note that we only accept mobile and landline numbers. Virtual phone numbers are not accepted.