The phrase "advised to speak to" is correct and usable in written English.
It can be used when suggesting that someone should consult or communicate with another person for guidance or information.
Example: "After reviewing the situation, I was advised to speak to the manager for further clarification."
Alternatives: "recommended to consult" or "suggested to talk to".
Players have been advised to speak to their lawyers.
Customers who booked only flights with a travel agent and separate holiday accommodation are advised to speak to their travel agent about their arrangements.
Women are being advised to speak to their GP if the implants were done on the NHS - if they were done privately they should contact their clinic.
If participants wish to seek treatment elsewhere, they will be advised to speak to their regular general practitioner or will be provided with information to locate an appropriate general practitioner in their local area.
Writer was advised to speak with Mrs. Littauer by Dr. Mary Moore, a Hunter College professor of ancient art.
Passengers have been advised to speak with their airline before travelling to the airport.
He wrote one chapter per morning, but even in the afternoon his family and staff were ill-advised to speak to him.
Last year, the girl reportedly sought counsel from Father Kaiser, who advised her to speak to lawyers who later pursued a case against Mr. Sunkuli.
She advised him to speak to their son, Mark, who works for Ingram Entertainment, a distributor of movies and video games on VHS and DVD.
He also advised me to speak to the florist and find out what flowers will be in season, rather than picking something which needs to be imported, which would be more expensive.
I love the scene in which Sanger uses her "gynoplaque" (a plastic replica of the female sex organs) to demonstrate contraceptive techniques to a Ku Klux Klan women's auxiliary meeting, only for one of the audience to ask: "What's a vagina?" (She had been advised not to speak to the KKK, but she was determined that all woman have access to information about their bodies).
