For both cloque and matelase the pattern is woven in -- not heat stamped.
Cloque has two yarns--one vertical (the warp) and the other horizontal (the weft or filling).
Matelase will have more than two yarns--but they're all woven together and the fabric is thicker with some "volume".
Look at the wrong side of your fabric. In the sections where it is raised on the right side, is there an indentation on the WS or is it more or less smooth? If the former, it is probably cloque.