Make sure no other person among your family, your friends, etc. blocked POTUS on your Twitter account, then:
* tweet to all that follow your account and all accounts that you follow, and describe exactly what happened, and how you are sure that no one blocked POTUS from your account, how you know this, how your phone is never out of your sight, etc.
* Tweet people like Dan Bongino, Mark Levin, Sean Hannity, Paul Joseph Watson, etc. and let them know what happened exactly as you described in the above.
* Write the White House Web Page where comments are allowed and describe the above. Fax the White House the same description. If you don’t have a fax, use a free online fax service like Faxzero.com and get it done that way. Faxes are good because they need to be printed and logged.
* Write and Fax the WH Director of Cybersecurity.
* Write and fax your US Reps and your US Senators.
Let us know how it goes.
Amen. Worth doing, imho.