Hello, I have a phone in the T-Mobile network, I have not been able to send an SMS to one person for some time. The person is in England and has a number in the English network. When I call her, he is shown my number, but without identifying the person, despite having me in his contacts. After transferring my card to another phone, the effect is the same, i.e. I send an SMS that does not reach the addressee, and after several dozen minutes I receive an SMS error report. What could be causing this?