3 or 4 missed calls from this number - again no message left - and like some on this forum, my T-Mobile contract is up for renewal - Coincidence? maybe.
If you get to answer it, DO NOT give out ur personals - just in case it's a scam - just demand they put you on their Do Not Call/Do Not Solicit list.
Then if you get the calls again, report to them to the relevant body