Have called four times (so far) in last two days. Claim to be from "Google optimiser" something or other. Will either be a silent call that hangs up after 5 seconds or get a telemarketer looking for the business owner - that hangs up when the owner is unavailable.

Asian sounding woman, asked for business owner. When asked who was calling demanded to speak to the owner. advised them that if they would not tell me who they were I would not put them through. Lady them hung up. The same number then rang 5 more times during the day. No message ever left. Guessing just another Fu**ing Parasite.