The presale codes have been sent to the people that pre ordered the album back in September. That sale however is already ongoing since Tuesday so I don't know if there are tickets left. If you did preorder mail the customer service, the email is in another thread about presale codes. For the MOJO presale, no clue, i would have expected a link myself but apparently it is random.

If someone has a code for 1 ticket left in Amsterdam that they want to share I would be quite happy

https://www.ticketmaster.nl/feature/muse/?language=nl-nl Here you go