I too have the same issue. This issue started only a few days back. The last text I received from a Swiss number was on 05-Aug-2023. Nothing after this.
I contacted three support on the phone today and was answered by a junior who said he was new in the support team! After over an hour on the call, there was no resolution. Was told that the 'manager' will call me back. But never got a call back.
Shameful customer service from three.
