specks of food will entice ants and other creatures to the floor and will eventually live and eat the wires and other parts of the computer, woods/walls etc.
in our workplace we value professionalism. we are not allowed to eat food, even candies while taking calls coz callers can hear you sucking or chewing it.
since you are being paid, i think there's no really need for your TL to say "thanks for coming to work". you were told during your final interview or orientation your role and expectations of your work, right? nagkatawa nuon ko na ang pag allow sa imong TL sa food pag thank you diay ninyo na niwork mo.

mabawa ra oi
you dont need to know if bati na cc akong company. dont feel sorry for me coz you dont even sound working in a call center.
SYKES ka?
NO THANKS.