I was informed that someone I didn't know gave me my mobile phone.

The short message of foreign visit notification is fake. Normally, not. This is just a means to collect the company, and its purpose is to use the debtor's fear to force the debtor to repay the loan in advance. The country now explicitly prohibits violent collection. You just need to save the short message. If necessary, you can call 12378 to report to the banking supervisor, and they will be honest. However, you still have to pay back the money. Work hard and get ashore as soon as possible.