[protected] — irritating phone calls

I am a very old customer of yours. i am a patient of rheumotoid arthiritis and whenever i am about to take rest in the afternoon, i am repeatedly disturbed by the irritating telephonic calls from all kind of banks or insurance companies who are into telemarketing. since i do not have caller-id facility, so i cant even tell you the numbers. please give me this facility and change my handset which can show the telephone numbers so that i can identify the unwanted callers and get their numbers debarred.

seeking prompt and favourable action,
balvinder chawla
[protected]
1165 sector 4
panchkula