The phrase "prompt assistance" means getting help right away.
Sentences with «prompt assistance»
The IT application support professionals have to be well prepared to deal with any technical and functional issues faced by the clients and provide prompt assistance to resolve these errors. (bestsampleresume.com)
I went to this dealer because they offered prompt assistance and quickly found the exact color and interior that I was looking for, and had it for me within 48 hours. (autolist.com)