对不起，此内容只适用于美式英文。

As most of our tellows users know all too well, incessant calls from telemarketers or call centres have become a genuine nuisance. Thus, services to put a stop to these type of unsolicited calls enjoy increasing popularity. Aside from apps such as the tellows app to detect spam and scam calls, there is the option to register with the Telephone Preference Service (TPS) to prevent unwanted and cold calls.

A Scam Claiming to Stop Spam
However, not all service provider are trustworthy: some fraudsters try to take advantage of the fact that many consumers are plagued by unsolicited calls. The police advise to be extremely cautious of callers claiming to provide services to prevent unwanted calls. Claiming to be aware of the fact that you have been bothered by numerous unsolicited calls recently, the caller attempts to offer information and appliances in order to stop the calls.

In some instances, the caller may even know some personal information such as your address, the bank you use or your credit/debit card number. Some of our tellows users have made similar experiences as Betty Sinclair, who allocated the number 07825874525 to BT, who reported:

Unknown number sent numerous messages, knew details about myself which unnerved me.

Generally, the purpose of the call is to obtain further information regarding your credit/debit card such as the issue or expiry date, account number, security code, to access your credit card account or use for identity theft.

Recognizing and Dealing with the Scammers
Sometimes even seemingly insignificant details can be a clue that you are targeted by scammers. Therefore you should be wary, how the caller identifies him- or herself: even though the scammers often claim to be calling from BT directly, only BT Privacy at Home offers the telephone preference service. Similarly, user spammed, who commented on the number 01274802868, noticed:

The caller said they were calling from British Telecom. As a former worker for BT they stopped calling themselves British Telecom back in the early 90s.

To avoid falling a victim to these types of scams, you should never give bank or personal details on the telephone, especially if you have doubts about the legitimacy of the call. If the caller claims to be from your bank, phone them on the number that you normally use or know to be legitimate to confirm that the call you receive was genuine.

Furthermore, you should be aware that if you receive unsolicited calls in spite of being registered at TPS, the calls are probably scam calls as well. User Paula, for instance, wrote about the number 00443562780913:

The person who called, spoke English with an accent, said she was not trying to sell anything but merely conducting a survey. She seemed to know both my name and when I asked her how they have these information, since I’m registered with TPS, she got evasive and asked if I could just answer her some questions.

In case you have provided personal and financial information to what you suspect to be scammers, you may contact your bank and, if necessary, ask them to issue a new credit/debit card. Moreover, you can report the scammers to the police at Action Fraud as well as on tellows to warn others who may be contacted by the scammers.

Source:
Chester Chronicle