Yes it is possible to change your user name and handle whenever you want on Twitter.
This @JFMK account has posts going back to 2010. In these tweets (screenshot below) in October 2012 this @Iramoc (user name Claude Omari) account responds to @JFMK calling him Dg which I presume stands for Director General. Jean Mupande is the CEO of CAMI but as MoneyBags discovered he is also the Director General of Spintelligent.
View attachment 17788
The @Iramoc (Claude Omari) account is active and is followed by AVZ's lawyer Christian Lukusa. Many of his recent tweets are pro Tshisekedi and anti Kabila. The link for the company e29resources.com in his bio leads to a homepage with nothing on it.
However a google search for e29 resources shows a copper mining company that is headquartered in Vancouver Canada with 2 projects in Peru. I don't know if it's the same company but it seems like it.
Link to their website:
www.e29copper.com
In the email (screenshot below) from Balthazar Tshiseke to Cominiere in 2020 that was released this week he refers to the recipient as Dg.
View attachment 17789
The question is who is this @Iramoc (Claude Omari) account more likely to have been messaging back in 2012. Either it is Jean Mupande or it is the Director General of Cominiere (I think it's Célestin Kabemba but not sure) that has changed his user name and handle to try and discredit AVZ imo