I think this is where the confusion starts, 2 hotels with similar names . there is a htop hotel on the top main road which used to be called the Heidelberg but then changed to the Hotel Santa Susanna Resort
and a new hotel in Santa Susanna using the name Aparthotel Santa Susanna close to the beach and railway line . on the opposite side of the road to Royal Sun, walking as though your going to pineda, i haven't stayed in either of them so i cant comment on hotels