by/on/upon request

idiom

: by asking for something usually in a formal way
Catalogs are available by/on/upon request.

Dictionary Entries Near by/on/upon request

by oneself

by/on/upon request

by ourselves

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“By/on/upon request.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/by%2Fon%2Fupon%20request. Accessed 22 Mar. 2023.

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