technical support
US /ˈtek.nɪ.kəl səˈpɔːrt/
UK /ˈtek.nɪ.kəl səˈpɔːrt/

1.
support technique, assistance technique
advisory and practical help with the use of computer hardware and software.
:
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I called technical support because my computer wasn't working.
J'ai appelé le support technique car mon ordinateur ne fonctionnait pas.
•
Our company offers 24/7 technical support for all our products.
Notre entreprise offre un support technique 24h/24 et 7j/7 pour tous nos produits.