Thank you. I have checked but the leaves are too small for a potentilla.
It was originally bought as a Mexican Orange Blossom but I think we were fiddled as there is no resemblance to this. Leaves are a maximum of 5mm long. The plant currently stands at about 1m tall.
The picture is a bit fuzzy but it looks like a white potentilla shrub. It is a hybrid as the normal flower color is yellow. The following link takes you to information/care of this plant. https://www.gardeningknowhow.com/ornamental/shrubs/potentilla/growing-potentilla-shrubs.htm