The unlimited went against the agreement of DMA

Despite the fact that I have registered my details with the Direct Marketing Association (DMA)'s national opt-out database, The Unlimited contacted me today and attempted to sell me a product telephonically.<br> I registered several years ago with the opt-out database, and no other direct marketing company has ever tried to contact me. This is the only call centre that has gone against the agreement of the DMA that I am aware of.