get_map not returning satellite map when location specified as extents

I can get get_map to return a satellite map when specifying the maps location by a centroid i.e. location = c(Longitude, Latitude) , however, when I specify the location as a bounding box (i.e. location = c(left, bottom, right,top), it returns a terrain image not a satellite. In both examples I have specified maptype = "satellite". Is someone able to please shed some light on this issue?

Start by reproducing the reported get_map behavior with a centroid and with bounding-box extents while setting maptype to "satellite". Trace how get_map handles the location form and maptype, then confirm that the extents case returns satellite imagery rather than terrain and add coverage if the repository has an established test location.

Written by the indexing model from the issue text.