Fixed tasks are specifically for newcomers. If you had already communicated your account change and it was accepted without any problem, you should have been assigned the achievements in your new account to avoid these small inconveniences, since the teachers have the obligation to correct the users with the #Newcomer[Task-4] tags in the CryptoAcademy.

On the other hand, these tasks for new users is for them to be aware of the proper functioning of their accounts and according to what the representative of your country says you have already created 3 profiles even though 2 of them are not active, so therefore you should be more careful with your accounts and not lose them again.

You must understand that multi-accounts are not accepted for any reason, I hope this is not your case. I hope you solve your problem with your account soon, but if your post is accepted and the 7 days pass, you can republish again to be reviewed and voted.

Good luck.