# Contact

## Technical service support requests and feedback

* Contact us through email or phone or come to our weekly user support session on Zoom
* Email: <mailto:servicedesk@csc.fi>
* Phone: +358 9 457 2821
* Open Monday to Friday from 8.30 a.m. to 4 p.m.

!!! info "Weekly research support coffees"
    Does formulating your support request in writing feel cumbersome? Please consider
    joining our weekly research support coffee sessions on Wednesdays at 2 p.m. where
    you can directly discuss with our specialists!

    !!! info-label
        [See here for more information and connection details](https://csc.fi/en/training-calendar/csc-research-support-coffee-every-wednesday-at-1400-finnish-time-2-2/).

!!! info "LUMI User Support Team"
    If you have any questions or issues related to using LUMI, please
    [contact the LUMI User Support Team](https://lumi-supercomputer.eu/user-support/need-help/).

## How to write good support requests

* [13 point list to speed up resolving your issue](./support-howto.md)

## Archives

Having trouble finding an email or a newsletter sent to you by CSC? Browse the archives!

### Newsletters

* [Tutkimus / Research](archives/tutkimus-research.md)
  ([subscribe](https://csc.fi/en/subscribe-to-newsletters/))
* [Asiakaskoulutus / Customer training](archives/asiakaskoulutus-customer-training.md)
  ([subscribe](https://csc.fi/en/subscribe-to-newsletters/))
* [LUMI newsletter](https://www.lumi-supercomputer.eu/newsletter/newsletter-archive/)
  ([subscribe](https://www.lumi-supercomputer.eu/newsletter/))

### Mailing lists

* [puhti-users](archives/puhti-users.md)
* [mahti-users](archives/mahti-users.md)
* [lumi-users](archives/lumi-users.md)
* [pouta-users](archives/pouta-users.md)
* [rahti-users](archives/rahti-users.md)
* [sd-desktop-users](archives/sd-desktop-users.md)
* [compute-server-announcements](archives/compute-server-announcements.md)
