The only time something like this would happen is if something major happened in game and they had to rollback the servers cause it effected far too many people. Although we haven't had a server rollback in awhile.
When the day becomes the night and the sky becomes the sea, when the clock strikes heavy and there’s no time for tea; and in our darkest hour, before my final rhyme, she will come back home to Wonderland and turn back the hands of time.
Raginglions
said
:
...A while ago...
You don't say when the "while ago" was. If it was towards the end of February, it's possible the rollback was part of the
Login Lockout issue
.
If you think this was the case, I don't know if Jagex is still actively offering additional additional restoration support, but if they are, the
Login lockout restoration page
in the Support Centre would be the best place to start.