they call me everyday...they disturb me when im sleeping, eating, when im work.. oh my god..

It's Dell Financial Services

"Allsec tech" on caller id.

they call me weekly

Calls at least daily, often multiple times.  Shows up as Allsec Tech.  A search for that company indicates its a company in India that handles calls for many companies.  Could be anything, including legit or non-legit businesses trying to contact you.