What do I do to change an already authorised foreign SIM number?
Whether you want to switch to a different foreign SIM operator, or simply fix a mistake in your authorised foreign number, you can change it by contacting tech. support. Just explain the issue and they will be happy to help.
Note, that you only need to contact tech. support if you want to change an authorised foreign SIM number without leaving the country it’s assigned to. You will have no problems with switching to a different local SIM when you travel to another country, the app will switch automatically.